Literature DB >> 21589188

Melaminium nitrate-melamine-water (1/1/1).

Farook Adam, Sek Kei Lin, Kasim Mohammed Hello, Madhukar Hemamalini, Hoong-Kun Fun.   

Abstract

In the crystal structure of the title salt, C(3)H(7)N(6) (+)·NO(3) (-)·C(3)H(6)N(6)·H(2)O, the asymmetric unit consists of two neutral melamine (1,3,5-triazine-2,4,6-triamine) mol-ecules, two melaminium cations, two nitrate anions and two solvent water mol-ecules. One of the nitrate anions is disordered over two sets of positions, with a refined occupancy ratio of 0.909 (3):0.091 (3). The cations and neutral mol-ecules are approximately planar, with maximum deviations of 0.018 (2), 0.024 (2), 0.019 (2) and 0.007 (2) Å for each, respectively. In the crystal structure, melaminium cations and netural melamine mol-ecules self-assemble via N-H⋯N hydrogen bonds to form a supra-molecular hexa-gonal-shaped motif. In addition, the nitrate anions and water mol-ecules are connected by N-H⋯O hydrogen bonds to form a three-dimensional network.

Entities:  

Year:  2010        PMID: 21589188      PMCID: PMC3009350          DOI: 10.1107/S1600536810043941

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For applications of melamine, see: Rima et al. (2008 ▶); Cook et al. (2005 ▶); Ramos Silva et al. (2008 ▶). For related structures, see: Debrus et al. (2007 ▶); Zhao & Shi (2010 ▶); Marchewka & Pietraszko (2003 ▶); Marchewka (2002 ▶). For applications of hydrogen bonding, see: Aghabozorg et al. (2008 ▶).

Experimental

Crystal data

C3H7N6 +·NO3 −·C3H6N6·H2O M = 333.31 Triclinic, a = 7.7759 (1) Å b = 9.0035 (1) Å c = 19.4573 (3) Å α = 96.182 (1)° β = 90.854 (1)° γ = 99.828 (1)° V = 1333.64 (3) Å3 Z = 4 Mo Kα radiation μ = 0.14 mm−1 T = 296 K 0.21 × 0.14 × 0.09 mm

Data collection

Bruker SMART APEXII CCD area-detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2009 ▶) T min = 0.972, T max = 0.987 22196 measured reflections 5160 independent reflections 3689 reflections with I > 2σ(I) R int = 0.042

Refinement

R[F 2 > 2σ(F 2)] = 0.047 wR(F 2) = 0.123 S = 1.03 5160 reflections 543 parameters All H-atom parameters refined Δρmax = 0.21 e Å−3 Δρmin = −0.45 e Å−3 Data collection: APEX2 (Bruker, 2009 ▶); cell refinement: SAINT (Bruker, 2009 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL and PLATON (Spek, 2009 ▶); software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009 ▶). Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536810043941/lh5157sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810043941/lh5157Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C3H7N6+·NO3·C3H6N6·H2OZ = 4
Mr = 333.31F(000) = 696
Triclinic, P1Dx = 1.660 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 7.7759 (1) ÅCell parameters from 3833 reflections
b = 9.0035 (1) Åθ = 2.3–29.8°
c = 19.4573 (3) ŵ = 0.14 mm1
α = 96.182 (1)°T = 296 K
β = 90.854 (1)°Block, purple
γ = 99.828 (1)°0.21 × 0.14 × 0.09 mm
V = 1333.64 (3) Å3
Bruker SMART APEXII CCD area-detector diffractometer5160 independent reflections
Radiation source: fine-focus sealed tube3689 reflections with I > 2σ(I)
graphiteRint = 0.042
φ and ω scansθmax = 26.0°, θmin = 2.1°
Absorption correction: multi-scan (SADABS; Bruker, 2009)h = −8→9
Tmin = 0.972, Tmax = 0.987k = −11→11
22196 measured reflectionsl = −23→23
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.047Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.123All H-atom parameters refined
S = 1.03w = 1/[σ2(Fo2) + (0.0625P)2 + 0.2158P] where P = (Fo2 + 2Fc2)/3
5160 reflections(Δ/σ)max < 0.001
543 parametersΔρmax = 0.21 e Å3
0 restraintsΔρmin = −0.45 e Å3
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2sigma(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.
xyzUiso*/UeqOcc. (<1)
N1A0.9356 (2)0.62933 (18)−0.08016 (9)0.0142 (4)
N2A0.7288 (2)0.48794 (18)−0.01488 (8)0.0149 (4)
N3A0.9137 (2)0.71794 (18)0.03718 (8)0.0139 (4)
N4A0.7628 (2)0.4097 (2)−0.12989 (9)0.0176 (4)
N5A0.7043 (2)0.5825 (2)0.09767 (9)0.0172 (4)
N6A1.1157 (2)0.8451 (2)−0.03080 (10)0.0165 (4)
C1A0.8069 (2)0.5077 (2)−0.07424 (10)0.0139 (4)
C2A0.7836 (2)0.5972 (2)0.03848 (10)0.0145 (4)
C3A0.9888 (2)0.7321 (2)−0.02329 (10)0.0136 (4)
N1B0.2450 (2)0.17275 (18)0.20073 (8)0.0157 (4)
N2B0.4686 (2)0.29201 (18)0.13081 (8)0.0149 (4)
N3B0.2675 (2)0.07228 (18)0.08247 (8)0.0152 (4)
N4B0.4452 (2)0.3774 (2)0.24538 (9)0.0183 (4)
N5B0.4750 (2)0.1976 (2)0.01677 (9)0.0160 (4)
N6B0.0627 (2)−0.0409 (2)0.15269 (10)0.0196 (4)
C1B0.3839 (2)0.2789 (2)0.19097 (10)0.0148 (4)
C2B0.4012 (2)0.1864 (2)0.07766 (10)0.0129 (4)
C3B0.1951 (2)0.0700 (2)0.14507 (10)0.0148 (4)
N1C0.4424 (2)1.05878 (19)0.34890 (9)0.0170 (4)
N2C0.4197 (2)1.15377 (18)0.46499 (8)0.0143 (4)
N3C0.2251 (2)0.92779 (18)0.41389 (8)0.0158 (4)
N4C0.6243 (2)1.2761 (2)0.39577 (10)0.0182 (4)
N5C0.2192 (2)1.0143 (2)0.52802 (9)0.0155 (4)
N6C0.2541 (3)0.8500 (2)0.29859 (9)0.0221 (4)
C1C0.4950 (2)1.1634 (2)0.40435 (10)0.0149 (4)
C2C0.2901 (2)1.0327 (2)0.46781 (10)0.0140 (4)
C3C0.3043 (3)0.9436 (2)0.35478 (10)0.0162 (4)
N1D0.2208 (2)0.40060 (18)0.37041 (8)0.0155 (4)
N2D0.2450 (2)0.48189 (18)0.49238 (8)0.0149 (4)
N3D0.0365 (2)0.26250 (18)0.44780 (8)0.0145 (4)
N4D0.4156 (2)0.6117 (2)0.41573 (10)0.0180 (4)
N5D0.0681 (3)0.3419 (2)0.56411 (9)0.0174 (4)
N6D0.0204 (2)0.1911 (2)0.32993 (9)0.0180 (4)
C1D0.2918 (2)0.4954 (2)0.42667 (10)0.0139 (4)
C2D0.1182 (2)0.3630 (2)0.49989 (10)0.0142 (4)
C3D0.0951 (3)0.2865 (2)0.38480 (10)0.0137 (4)
N8A0.7624 (2)0.76433 (19)0.28672 (9)0.0178 (4)*
O1AA0.8234 (2)0.77664 (18)0.22811 (8)0.0211 (4)0.909 (3)
O2AA0.7867 (2)0.87285 (18)0.33240 (8)0.0293 (5)0.909 (3)
O3AA0.6809 (2)0.63698 (18)0.30001 (8)0.0305 (5)0.909 (3)
O1AB0.887 (2)0.8747 (18)0.2933 (8)0.021 (4)*0.091 (3)
O2AB0.649 (2)0.7781 (19)0.3371 (8)0.026 (5)*0.091 (3)
O3AB0.721 (2)0.673 (2)0.2387 (9)0.029 (5)*0.091 (3)
N8B0.5925 (2)0.96755 (18)0.17530 (8)0.0163 (4)
O1B0.46913 (19)0.86023 (16)0.18015 (7)0.0240 (4)
O2B0.66849 (18)0.98031 (16)0.11995 (7)0.0200 (3)
O3B0.64020 (18)1.06308 (15)0.22762 (7)0.0191 (3)
O1W0.1736 (2)0.67667 (17)0.81644 (8)0.0188 (3)
O2W0.0718 (2)0.54790 (17)0.26433 (8)0.0217 (4)
H1N0.997 (3)0.639 (3)−0.1192 (12)0.028 (6)*
H2N0.504 (3)1.061 (3)0.3083 (12)0.032 (7)*
H1A0.816 (3)0.430 (2)−0.1706 (12)0.023 (6)*
H2A0.668 (3)0.328 (3)−0.1251 (13)0.044 (8)*
H3A0.622 (3)0.504 (3)0.1019 (11)0.022 (6)*
H4A0.739 (3)0.648 (3)0.1329 (11)0.019 (6)*
H5A1.154 (3)0.905 (3)0.0016 (12)0.020 (6)*
H6A1.157 (3)0.853 (2)−0.0732 (12)0.020 (6)*
H1B0.382 (3)0.377 (2)0.2808 (11)0.018 (6)*
H2B0.531 (3)0.460 (3)0.2400 (11)0.030 (7)*
H3B0.543 (3)0.276 (3)0.0113 (11)0.022 (6)*
H4B0.426 (3)0.137 (3)−0.0177 (12)0.025 (6)*
H5B0.021 (3)−0.106 (3)0.1195 (12)0.023 (6)*
H6B0.014 (3)−0.044 (3)0.1938 (12)0.027 (7)*
H1C0.676 (3)1.277 (3)0.3554 (13)0.030 (7)*
H2C0.668 (3)1.346 (3)0.4295 (13)0.033 (7)*
H3C0.259 (3)1.082 (3)0.5641 (12)0.025 (6)*
H4C0.138 (3)0.934 (3)0.5318 (12)0.032 (7)*
H5C0.172 (4)0.762 (3)0.3000 (13)0.047 (8)*
H6C0.318 (3)0.858 (2)0.2606 (11)0.016 (6)*
H1D0.458 (3)0.616 (2)0.3741 (11)0.014 (6)*
H2D0.459 (3)0.669 (3)0.4510 (12)0.024 (6)*
H3D0.129 (3)0.396 (3)0.5980 (12)0.030 (7)*
H4D−0.005 (3)0.268 (3)0.5669 (11)0.026 (7)*
H5D−0.051 (3)0.102 (3)0.3382 (12)0.034 (7)*
H6D0.082 (3)0.194 (3)0.2905 (12)0.027 (6)*
H1W10.203 (4)0.765 (3)0.7943 (14)0.054 (9)*
H2W10.270 (4)0.673 (4)0.8371 (17)0.084 (12)*
H1W20.116 (4)0.499 (3)0.2936 (15)0.055 (9)*
H2W2−0.034 (4)0.480 (3)0.2477 (13)0.042 (7)*
U11U22U33U12U13U23
N1A0.0151 (9)0.0154 (9)0.0106 (9)−0.0008 (7)0.0026 (7)0.0005 (7)
N2A0.0170 (9)0.0132 (9)0.0134 (9)0.0003 (7)0.0005 (7)0.0004 (7)
N3A0.0148 (9)0.0140 (9)0.0118 (9)−0.0006 (7)0.0013 (7)0.0015 (7)
N4A0.0202 (10)0.0178 (10)0.0128 (9)−0.0014 (8)0.0022 (8)−0.0009 (7)
N5A0.0201 (10)0.0155 (10)0.0130 (9)−0.0047 (8)0.0032 (8)−0.0005 (8)
N6A0.0190 (10)0.0168 (9)0.0104 (10)−0.0043 (7)0.0027 (8)−0.0021 (8)
C1A0.0125 (10)0.0135 (10)0.0155 (11)0.0017 (8)−0.0004 (8)0.0017 (8)
C2A0.0137 (10)0.0131 (10)0.0171 (11)0.0023 (8)−0.0003 (8)0.0038 (8)
C3A0.0133 (10)0.0128 (10)0.0153 (10)0.0038 (8)−0.0014 (8)0.0016 (8)
N1B0.0150 (9)0.0172 (9)0.0137 (9)−0.0002 (7)0.0011 (7)0.0006 (7)
N2B0.0151 (9)0.0156 (9)0.0130 (9)0.0005 (7)0.0013 (7)0.0007 (7)
N3B0.0151 (9)0.0157 (9)0.0134 (9)−0.0007 (7)−0.0004 (7)0.0010 (7)
N4B0.0180 (9)0.0215 (10)0.0116 (9)−0.0046 (8)0.0049 (8)−0.0027 (8)
N5B0.0172 (9)0.0156 (10)0.0122 (9)−0.0041 (8)0.0016 (7)−0.0003 (8)
N6B0.0201 (10)0.0228 (10)0.0118 (10)−0.0067 (8)0.0027 (8)−0.0011 (8)
C1B0.0126 (10)0.0156 (10)0.0157 (11)0.0005 (8)0.0004 (8)0.0030 (8)
C2B0.0124 (10)0.0135 (10)0.0133 (10)0.0031 (8)−0.0012 (8)0.0024 (8)
C3B0.0131 (10)0.0173 (11)0.0139 (10)0.0011 (8)0.0001 (8)0.0029 (8)
N1C0.0196 (9)0.0160 (9)0.0131 (9)−0.0026 (7)0.0029 (7)−0.0004 (7)
N2C0.0149 (9)0.0149 (9)0.0127 (9)0.0015 (7)0.0021 (7)0.0009 (7)
N3C0.0189 (9)0.0136 (9)0.0134 (9)−0.0011 (7)0.0013 (7)0.0012 (7)
N4C0.0205 (10)0.0179 (10)0.0131 (10)−0.0037 (8)0.0036 (8)−0.0008 (8)
N5C0.0179 (9)0.0137 (9)0.0129 (9)−0.0021 (8)0.0019 (7)−0.0008 (7)
N6C0.0271 (11)0.0206 (10)0.0142 (10)−0.0064 (8)0.0055 (8)−0.0020 (8)
C1C0.0142 (10)0.0145 (10)0.0163 (11)0.0037 (8)−0.0006 (8)0.0014 (8)
C2C0.0144 (10)0.0127 (10)0.0152 (10)0.0028 (8)0.0001 (8)0.0021 (8)
C3C0.0169 (10)0.0137 (10)0.0172 (11)0.0010 (8)0.0011 (8)0.0016 (8)
N1D0.0168 (9)0.0140 (9)0.0139 (9)−0.0012 (7)0.0007 (7)0.0001 (7)
N2D0.0164 (9)0.0150 (9)0.0130 (9)0.0019 (7)0.0010 (7)0.0015 (7)
N3D0.0162 (9)0.0142 (9)0.0119 (9)0.0000 (7)0.0005 (7)0.0004 (7)
N4D0.0228 (10)0.0174 (10)0.0106 (10)−0.0044 (8)0.0022 (8)−0.0007 (8)
N5D0.0221 (10)0.0152 (10)0.0118 (9)−0.0045 (8)0.0014 (8)−0.0005 (8)
N6D0.0211 (10)0.0182 (10)0.0118 (9)−0.0040 (8)0.0023 (8)−0.0003 (7)
C1D0.0145 (10)0.0132 (10)0.0151 (10)0.0059 (8)0.0003 (8)0.0009 (8)
C2D0.0151 (10)0.0147 (10)0.0137 (10)0.0037 (8)0.0015 (8)0.0037 (8)
C3D0.0152 (10)0.0143 (10)0.0123 (10)0.0040 (8)0.0005 (8)0.0029 (8)
O1AA0.0246 (9)0.0249 (10)0.0128 (8)0.0000 (7)0.0057 (7)0.0038 (7)
O2AA0.0517 (13)0.0175 (9)0.0141 (9)−0.0037 (8)0.0020 (8)−0.0033 (7)
O3AA0.0362 (11)0.0232 (10)0.0240 (10)−0.0163 (8)0.0075 (8)0.0003 (7)
N8B0.0170 (9)0.0162 (9)0.0150 (9)0.0011 (7)0.0005 (7)0.0020 (7)
O1B0.0221 (8)0.0201 (8)0.0247 (8)−0.0096 (6)0.0060 (7)−0.0002 (6)
O2B0.0226 (8)0.0227 (8)0.0130 (7)−0.0007 (6)0.0058 (6)0.0013 (6)
O3B0.0232 (8)0.0179 (8)0.0132 (7)−0.0020 (6)0.0019 (6)−0.0028 (6)
O1W0.0165 (8)0.0196 (8)0.0191 (8)−0.0011 (6)0.0027 (7)0.0031 (6)
O2W0.0239 (9)0.0194 (8)0.0204 (8)−0.0015 (7)−0.0047 (7)0.0048 (7)
N1A—C1A1.368 (2)N4C—C1C1.327 (3)
N1A—C3A1.374 (2)N4C—H1C0.89 (2)
N1A—H1N0.91 (2)N4C—H2C0.88 (2)
N2A—C1A1.328 (2)N5C—C2C1.317 (2)
N2A—C2A1.361 (2)N5C—H3C0.90 (2)
N3A—C3A1.330 (2)N5C—H4C0.89 (3)
N3A—C2A1.355 (2)N6C—C3C1.317 (3)
N4A—C1A1.322 (2)N6C—H5C0.93 (3)
N4A—H1A0.92 (2)N6C—H6C0.90 (2)
N4A—H2A0.96 (3)N1D—C3D1.348 (2)
N5A—C2A1.323 (3)N1D—C1D1.361 (2)
N5A—H3A0.88 (2)N2D—C1D1.347 (2)
N5A—H4A0.86 (2)N2D—C2D1.348 (2)
N6A—C3A1.313 (2)N3D—C3D1.341 (2)
N6A—H5A0.80 (2)N3D—C2D1.356 (2)
N6A—H6A0.89 (2)N4D—C1D1.333 (3)
N1B—C1B1.345 (2)N4D—H1D0.88 (2)
N1B—C3B1.352 (2)N4D—H2D0.84 (2)
N2B—C1B1.358 (2)N5D—C2D1.338 (3)
N2B—C2B1.360 (2)N5D—H3D0.86 (2)
N3B—C2B1.343 (2)N5D—H4D0.81 (2)
N3B—C3B1.350 (2)N6D—C3D1.352 (2)
N4B—C1B1.332 (2)N6D—H5D0.93 (2)
N4B—H1B0.85 (2)N6D—H6D0.91 (2)
N4B—H2B0.93 (2)N8A—O3AB1.180 (17)
N5B—C2B1.330 (2)N8A—O2AA1.235 (2)
N5B—H3B0.82 (2)N8A—O1AA1.250 (2)
N5B—H4B0.86 (2)N8A—O1AB1.257 (16)
N6B—C3B1.328 (3)N8A—O3AA1.266 (2)
N6B—H5B0.85 (2)N8A—O2AB1.340 (16)
N6B—H6B0.89 (2)N8B—O2B1.243 (2)
N1C—C1C1.362 (2)N8B—O1B1.253 (2)
N1C—C3C1.375 (3)N8B—O3B1.267 (2)
N1C—H2N0.93 (2)O1W—H1W10.94 (3)
N2C—C1C1.330 (2)O1W—H2W10.85 (4)
N2C—C2C1.359 (2)O2W—H1W20.86 (3)
N3C—C3C1.322 (2)O2W—H2W20.96 (3)
N3C—C2C1.362 (2)
C1A—N1A—C3A119.68 (17)H3C—N5C—H4C123 (2)
C1A—N1A—H1N122.0 (14)C3C—N6C—H5C121.6 (16)
C3A—N1A—H1N117.9 (14)C3C—N6C—H6C119.1 (13)
C1A—N2A—C2A115.58 (16)H5C—N6C—H6C118 (2)
C3A—N3A—C2A115.82 (16)N4C—C1C—N2C120.93 (18)
C1A—N4A—H1A118.4 (13)N4C—C1C—N1C117.64 (18)
C1A—N4A—H2A116.2 (15)N2C—C1C—N1C121.43 (18)
H1A—N4A—H2A125 (2)N5C—C2C—N2C117.48 (17)
C2A—N5A—H3A120.6 (14)N5C—C2C—N3C116.36 (18)
C2A—N5A—H4A118.9 (14)N2C—C2C—N3C126.15 (17)
H3A—N5A—H4A120 (2)N6C—C3C—N3C121.51 (18)
C3A—N6A—H5A120.8 (16)N6C—C3C—N1C116.79 (18)
C3A—N6A—H6A117.5 (14)N3C—C3C—N1C121.70 (17)
H5A—N6A—H6A122 (2)C3D—N1D—C1D114.55 (16)
N4A—C1A—N2A120.93 (18)C1D—N2D—C2D114.67 (16)
N4A—C1A—N1A117.61 (18)C3D—N3D—C2D114.38 (16)
N2A—C1A—N1A121.47 (17)C1D—N4D—H1D119.3 (13)
N5A—C2A—N3A116.94 (17)C1D—N4D—H2D116.6 (15)
N5A—C2A—N2A116.77 (18)H1D—N4D—H2D123 (2)
N3A—C2A—N2A126.28 (18)C2D—N5D—H3D117.8 (15)
N6A—C3A—N3A121.21 (18)C2D—N5D—H4D115.0 (16)
N6A—C3A—N1A117.70 (18)H3D—N5D—H4D126 (2)
N3A—C3A—N1A121.08 (17)C3D—N6D—H5D118.3 (14)
C1B—N1B—C3B114.54 (16)C3D—N6D—H6D115.0 (14)
C1B—N2B—C2B114.46 (16)H5D—N6D—H6D120 (2)
C2B—N3B—C3B115.23 (16)N4D—C1D—N2D117.56 (18)
C1B—N4B—H1B116.4 (14)N4D—C1D—N1D117.41 (18)
C1B—N4B—H2B120.1 (14)N2D—C1D—N1D125.02 (18)
H1B—N4B—H2B121 (2)N5D—C2D—N2D117.53 (18)
C2B—N5B—H3B118.4 (15)N5D—C2D—N3D116.89 (18)
C2B—N5B—H4B117.1 (15)N2D—C2D—N3D125.58 (17)
H3B—N5B—H4B122 (2)N3D—C3D—N1D125.78 (17)
C3B—N6B—H5B122.0 (15)N3D—C3D—N6D118.13 (18)
C3B—N6B—H6B118.3 (14)N1D—C3D—N6D116.07 (17)
H5B—N6B—H6B120 (2)O3AB—N8A—O2AA169.5 (9)
N4B—C1B—N1B117.02 (18)O3AB—N8A—O1AA57.0 (9)
N4B—C1B—N2B117.46 (17)O2AA—N8A—O1AA120.86 (17)
N1B—C1B—N2B125.51 (17)O3AB—N8A—O1AB129.1 (12)
N5B—C2B—N3B118.21 (17)O2AA—N8A—O1AB52.2 (7)
N5B—C2B—N2B116.93 (17)O1AA—N8A—O1AB73.0 (8)
N3B—C2B—N2B124.86 (17)O3AB—N8A—O3AA63.9 (9)
N6B—C3B—N3B117.65 (18)O2AA—N8A—O3AA119.80 (17)
N6B—C3B—N1B117.06 (18)O1AA—N8A—O3AA119.28 (16)
N3B—C3B—N1B125.28 (17)O1AB—N8A—O3AA154.5 (8)
C1C—N1C—C3C119.51 (17)O3AB—N8A—O2AB118.6 (12)
C1C—N1C—H2N120.2 (15)O2AA—N8A—O2AB58.6 (7)
C3C—N1C—H2N120.2 (14)O1AA—N8A—O2AB156.4 (7)
C1C—N2C—C2C115.68 (16)O1AB—N8A—O2AB110.8 (11)
C3C—N3C—C2C115.38 (17)O3AA—N8A—O2AB67.8 (7)
C1C—N4C—H1C118.9 (15)O2B—N8B—O1B120.62 (16)
C1C—N4C—H2C122.7 (15)O2B—N8B—O3B120.05 (16)
H1C—N4C—H2C118 (2)O1B—N8B—O3B119.34 (16)
C2C—N5C—H3C117.8 (14)H1W1—O1W—H2W1102 (3)
C2C—N5C—H4C119.4 (15)H1W2—O2W—H2W2104 (2)
C2A—N2A—C1A—N4A−179.15 (18)C2C—N2C—C1C—N4C−179.32 (18)
C2A—N2A—C1A—N1A0.9 (3)C2C—N2C—C1C—N1C0.9 (3)
C3A—N1A—C1A—N4A−178.41 (18)C3C—N1C—C1C—N4C−177.41 (18)
C3A—N1A—C1A—N2A1.5 (3)C3C—N1C—C1C—N2C2.4 (3)
C3A—N3A—C2A—N5A−178.58 (18)C1C—N2C—C2C—N5C176.16 (18)
C3A—N3A—C2A—N2A2.8 (3)C1C—N2C—C2C—N3C−4.2 (3)
C1A—N2A—C2A—N5A178.11 (18)C3C—N3C—C2C—N5C−176.55 (18)
C1A—N2A—C2A—N3A−3.2 (3)C3C—N3C—C2C—N2C3.8 (3)
C2A—N3A—C3A—N6A179.66 (19)C2C—N3C—C3C—N6C−179.85 (19)
C2A—N3A—C3A—N1A0.0 (3)C2C—N3C—C3C—N1C−0.1 (3)
C1A—N1A—C3A—N6A178.31 (18)C1C—N1C—C3C—N6C176.93 (18)
C1A—N1A—C3A—N3A−2.0 (3)C1C—N1C—C3C—N3C−2.8 (3)
C3B—N1B—C1B—N4B−176.03 (18)C2D—N2D—C1D—N4D179.39 (17)
C3B—N1B—C1B—N2B2.6 (3)C2D—N2D—C1D—N1D0.3 (3)
C2B—N2B—C1B—N4B178.92 (18)C3D—N1D—C1D—N4D−179.25 (17)
C2B—N2B—C1B—N1B0.3 (3)C3D—N1D—C1D—N2D−0.2 (3)
C3B—N3B—C2B—N5B−178.07 (17)C1D—N2D—C2D—N5D178.84 (17)
C3B—N3B—C2B—N2B2.4 (3)C1D—N2D—C2D—N3D−1.2 (3)
C1B—N2B—C2B—N5B177.45 (17)C3D—N3D—C2D—N5D−178.23 (17)
C1B—N2B—C2B—N3B−3.0 (3)C3D—N3D—C2D—N2D1.8 (3)
C2B—N3B—C3B—N6B−179.74 (18)C2D—N3D—C3D—N1D−1.7 (3)
C2B—N3B—C3B—N1B1.0 (3)C2D—N3D—C3D—N6D179.96 (17)
C1B—N1B—C3B—N6B177.44 (18)C1D—N1D—C3D—N3D0.9 (3)
C1B—N1B—C3B—N3B−3.3 (3)C1D—N1D—C3D—N6D179.31 (17)
D—H···AD—HH···AD···AD—H···A
N4A—H1A···O2Wi0.92 (2)2.05 (2)2.965 (2)174.2 (17)
N4B—H1B···N1D0.85 (2)2.18 (2)3.025 (2)174.1 (18)
N4D—H1D···O3AA0.88 (2)2.27 (2)3.077 (2)153 (2)
N1A—H1N···O1Wii0.91 (2)1.89 (2)2.771 (2)165 (2)
N4A—H2A···O1Bi0.96 (3)2.03 (3)2.838 (2)141 (2)
N4B—H2B···O3AA0.93 (3)2.05 (2)2.810 (2)138.8 (18)
N4C—H2C···N2Diii0.88 (3)2.07 (3)2.945 (2)176 (2)
N4D—H2D···N2Ciii0.84 (2)2.23 (2)3.069 (2)172 (2)
N1C—H2N···O3B0.93 (2)1.91 (2)2.836 (2)177 (2)
O2W—H1W2···N1D0.86 (3)2.04 (3)2.899 (2)174 (3)
N5A—H3A···N2B0.88 (3)2.20 (3)3.062 (2)165 (2)
N5B—H3B···N2A0.82 (3)2.30 (3)3.119 (2)175 (2)
N5C—H3C···O2AAiii0.89 (2)2.06 (2)2.799 (2)140 (2)
N5D—H3D···O3AAiv0.86 (2)2.53 (2)3.232 (3)140 (2)
N5A—H4A···O1AA0.86 (2)2.11 (2)2.963 (2)171 (2)
N5B—H4B···O2Bi0.86 (2)2.20 (2)3.045 (2)167 (2)
N5C—H4C···N3Dv0.89 (3)2.12 (3)2.996 (2)173 (2)
N5D—H4D···N3Cv0.81 (3)2.30 (3)3.105 (3)173 (2)
N6A—H5A···N3Bvi0.80 (2)2.13 (2)2.926 (2)175.9 (19)
N6B—H5B···N3Avii0.84 (2)2.18 (2)3.020 (2)177 (2)
N6C—H5C···O2W0.93 (3)2.00 (3)2.849 (2)151 (2)
N6D—H5D···O2AAvii0.93 (3)2.22 (3)3.126 (2)167 (2)
N6A—H6A···O1Wii0.90 (2)2.55 (2)3.262 (2)137.2 (15)
N6A—H6A···O2Bviii0.90 (2)2.14 (2)2.841 (2)135.2 (17)
N6B—H6B···O1AAvii0.89 (2)2.17 (3)2.806 (2)128 (2)
N6C—H6C···O1B0.90 (2)1.97 (2)2.868 (2)174.6 (18)
N6D—H6D···N1B0.91 (2)2.18 (2)3.088 (2)172 (2)
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
N4A—H1A⋯O2Wi0.92 (2)2.05 (2)2.965 (2)174.2 (17)
N4B—H1B⋯N1D0.85 (2)2.18 (2)3.025 (2)174.1 (18)
N4D—H1D⋯O3AA0.88 (2)2.27 (2)3.077 (2)153 (2)
N1A—H1N⋯O1Wii0.91 (2)1.89 (2)2.771 (2)165 (2)
N4A—H2A⋯O1Bi0.96 (3)2.03 (3)2.838 (2)141 (2)
N4B—H2B⋯O3AA0.93 (3)2.05 (2)2.810 (2)138.8 (18)
N4C—H2C⋯N2Diii0.88 (3)2.07 (3)2.945 (2)176 (2)
N4D—H2D⋯N2Ciii0.84 (2)2.23 (2)3.069 (2)172 (2)
N1C—H2N⋯O3B0.93 (2)1.91 (2)2.836 (2)177 (2)
O2W—H1W2⋯N1D0.86 (3)2.04 (3)2.899 (2)174 (3)
N5A—H3A⋯N2B0.88 (3)2.20 (3)3.062 (2)165 (2)
N5B—H3B⋯N2A0.82 (3)2.30 (3)3.119 (2)175 (2)
N5C—H3C⋯O2AAiii0.89 (2)2.06 (2)2.799 (2)140 (2)
N5D—H3D⋯O3AAiv0.86 (2)2.53 (2)3.232 (3)140 (2)
N5A—H4A⋯O1AA0.86 (2)2.11 (2)2.963 (2)171 (2)
N5B—H4B⋯O2Bi0.86 (2)2.20 (2)3.045 (2)167 (2)
N5C—H4C⋯N3Dv0.89 (3)2.12 (3)2.996 (2)173 (2)
N5D—H4D⋯N3Cv0.81 (3)2.30 (3)3.105 (3)173 (2)
N6A—H5A⋯N3Bvi0.80 (2)2.13 (2)2.926 (2)175.9 (19)
N6B—H5B⋯N3Avii0.84 (2)2.18 (2)3.020 (2)177 (2)
N6C—H5C⋯O2W0.93 (3)2.00 (3)2.849 (2)151 (2)
N6D—H5D⋯O2AAvii0.93 (3)2.22 (3)3.126 (2)167 (2)
N6A—H6A⋯O1Wii0.90 (2)2.55 (2)3.262 (2)137.2 (15)
N6A—H6A⋯O2Bviii0.90 (2)2.14 (2)2.841 (2)135.2 (17)
N6B—H6B⋯O1AAvii0.89 (2)2.17 (3)2.806 (2)128 (2)
N6C—H6C⋯O1B0.90 (2)1.97 (2)2.868 (2)174.6 (18)
N6D—H6D⋯N1B0.91 (2)2.18 (2)3.088 (2)172 (2)

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) ; (vi) ; (vii) ; (viii) .

  6 in total

1.  Analysis of melamine resins by capillary zone electrophoresis with electrospray ionization-mass spectrometric detection.

Authors:  Helmy A Cook; Christian W Klampfl; Wolfgang Buchberger
Journal:  Electrophoresis       Date:  2005-04       Impact factor: 3.535

2.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

3.  Bis(2,4,6-triamino-1,3,5-triazin-1-ium) bis-(4-hydroxy-pyridine-2,6-carboxyl-ato)-cuprate(II) hexa-hydrate.

Authors:  Manuela Ramos Silva; Elham Motyeian; Hossein Aghabozorg; Mohammad Ghadermazi
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2008-08-16

4.  Tetra-kis(2,4,6-triamino-1,3,5-triazin-1-ium) tris-(pyridine-2,6-dicarboxyl-ato)calcate(II) hexa-hydrate.

Authors:  Hossein Aghabozorg; Shirin Daneshvar; Andya Nemati
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2008-07-26

5.  Melaminium iodide monohydrate.

Authors:  Min Min Zhao; Ping Ping Shi
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-05-22

6.  Structure validation in chemical crystallography.

Authors:  Anthony L Spek
Journal:  Acta Crystallogr D Biol Crystallogr       Date:  2009-01-20
  6 in total
  1 in total

1.  Erratum: Melaminium nitrate-melamine-water (1/1/1). Corrigendum.

Authors:  Farook Adam; Kei Lin Sek; Kasim Mohammed Hello; Madhukar Hemamalini; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-11-23
  1 in total

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