Literature DB >> 21522329

4-Carbamoylpiperidinium 2-carb-oxy-benzoate-benzene-1,2-dicarb-oxy-lic acid (1/1).

Graham Smith, Urs D Wermuth.   

Abstract

The asymmetric unit of the title salt adduct, C(6)H(13)N(2)O(+)·C(8)H(5)O(4) (-)·C(8)H(6)O(4), comprises one isonipecotamide cation, a hydrogen phthalate anion and a phthalic acid adduct mol-ecule. These form a two-dimensional hydrogen-bonded network through head-to-tail cation-anion-adduct mol-ecule inter-actions which include a cyclic heteromolecular amide-carboxyl-ate motif [graph set R(2) (2)(8)], conjoint cyclic R(2) (2)(6) and R(3) (3)(10) piperidinium N-H⋯O(carbox-yl) associations, as well as strong carboxyl O-H⋯O(carbox-yl) hydrogen bonds.

Entities:  

Year:  2011        PMID: 21522329      PMCID: PMC3052136          DOI: 10.1107/S1600536811003825

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


Related literature

For structural data on isonipecotamide salts, see: Smith et al. (2010 ▶); Smith & Wermuth (2010a ▶,b ▶,c ▶,d ▶, 2011 ▶). For the crystal structure of o-phthalic acid, see: Ermer (1981 ▶). For hydrogen-bonding graph-set analysis, see: Etter et al. (1990 ▶).

Experimental

Crystal data

C6H13N2O+·C8H5O4 −·C8H6O4 M = 460.43 Triclinic, a = 8.7857 (4) Å b = 11.7907 (6) Å c = 12.3188 (6) Å α = 62.496 (5)° β = 85.916 (4)° γ = 82.604 (4)° V = 1122.36 (11) Å3 Z = 2 Mo Kα radiation μ = 0.11 mm−1 T = 200 K 0.40 × 0.30 × 0.18 mm

Data collection

Oxford Diffraction Gemini-S CCD-detector diffractometer Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2010 ▶) T min = 0.923, T max = 0.980 13586 measured reflections 4401 independent reflections 3444 reflections with I > 2σ(I) R int = 0.024

Refinement

R[F 2 > 2σ(F 2)] = 0.037 wR(F 2) = 0.094 S = 1.07 4401 reflections 326 parameters H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.25 e Å−3 Δρmin = −0.22 e Å−3 Data collection: CrysAlis PRO (Oxford Diffraction, 2010 ▶); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶) within WinGX (Farrugia, 1999 ▶); molecular graphics: PLATON (Spek, 2009 ▶); software used to prepare material for publication: PLATON. Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536811003825/wn2419sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536811003825/wn2419Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C6H13N2O+·C8H5O4·C8H6O4Z = 2
Mr = 460.43F(000) = 484
Triclinic, P1Dx = 1.362 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 8.7857 (4) ÅCell parameters from 6939 reflections
b = 11.7907 (6) Åθ = 3.2–28.7°
c = 12.3188 (6) ŵ = 0.11 mm1
α = 62.496 (5)°T = 200 K
β = 85.916 (4)°Plate, colourless
γ = 82.604 (4)°0.40 × 0.30 × 0.18 mm
V = 1122.36 (11) Å3
Oxford Diffraction Gemini-S CCD-detector diffractometer4401 independent reflections
Radiation source: Enhance (Mo) X-ray source3444 reflections with I > 2σ(I)
graphiteRint = 0.024
Detector resolution: 16.077 pixels mm-1θmax = 26.0°, θmin = 3.3°
ω scansh = −10→10
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2010)k = −14→14
Tmin = 0.923, Tmax = 0.980l = −15→15
13586 measured reflections
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.037Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.094H atoms treated by a mixture of independent and constrained refinement
S = 1.07w = 1/[σ2(Fo2) + (0.0531P)2] where P = (Fo2 + 2Fc2)/3
4401 reflections(Δ/σ)max = 0.001
326 parametersΔρmax = 0.25 e Å3
0 restraintsΔρmin = −0.22 e Å3
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles
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 > σ(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*/Ueq
O41C0.74423 (12)0.61632 (11)−0.02736 (9)0.0416 (3)
N1C1.00683 (14)0.42772 (13)0.35653 (11)0.0325 (4)
N41C0.52124 (15)0.58014 (14)0.08017 (12)0.0383 (4)
C2C0.85240 (17)0.48482 (14)0.37702 (12)0.0316 (5)
C3C0.77366 (16)0.56671 (13)0.25569 (12)0.0279 (4)
C4C0.75894 (15)0.48525 (13)0.19015 (12)0.0255 (4)
C5C0.91666 (17)0.42485 (15)0.17252 (13)0.0352 (5)
C6C0.99655 (17)0.34593 (15)0.29489 (13)0.0355 (5)
C41C0.67380 (16)0.56532 (14)0.07155 (12)0.0287 (4)
O11A0.80799 (12)0.85845 (10)0.30180 (10)0.0382 (3)
O12A1.01504 (12)0.71996 (11)0.38418 (9)0.0457 (4)
O21A1.15402 (13)0.64611 (10)0.19609 (10)0.0428 (4)
O22A1.34884 (12)0.66738 (10)0.28975 (10)0.0350 (3)
C1A1.04746 (16)0.90657 (13)0.19787 (11)0.0257 (4)
C2A1.18683 (15)0.85461 (13)0.16830 (12)0.0273 (4)
C3A1.28238 (18)0.93696 (15)0.07974 (14)0.0388 (5)
C4A1.2394 (2)1.06857 (16)0.02235 (15)0.0456 (5)
C5A1.10150 (19)1.11900 (15)0.05043 (14)0.0402 (5)
C6A1.00445 (17)1.03847 (13)0.13774 (12)0.0321 (4)
C11A0.95520 (16)0.81938 (13)0.30320 (12)0.0270 (4)
C21A1.22700 (16)0.71181 (14)0.22139 (12)0.0285 (4)
O11B0.55460 (12)0.56551 (9)0.65124 (9)0.0375 (3)
O12B0.70819 (11)0.67951 (10)0.49932 (9)0.0365 (3)
O21B0.62518 (11)0.72888 (11)0.75928 (9)0.0380 (3)
O22B0.39403 (12)0.75761 (11)0.83676 (9)0.0443 (4)
C1B0.47554 (15)0.78671 (12)0.53468 (12)0.0234 (4)
C2B0.41733 (15)0.82601 (12)0.62266 (12)0.0250 (4)
C3B0.30225 (17)0.92762 (14)0.59082 (14)0.0332 (5)
C4B0.24536 (18)0.99166 (14)0.47329 (15)0.0400 (5)
C5B0.30399 (18)0.95471 (14)0.38598 (14)0.0380 (5)
C6B0.41770 (17)0.85304 (13)0.41663 (13)0.0309 (4)
C11B0.58924 (15)0.66926 (13)0.56461 (12)0.0251 (4)
C21B0.47720 (16)0.76662 (13)0.75001 (12)0.0282 (4)
H4C0.697800.415400.243000.0310*
H11C1.068 (2)0.4933 (17)0.3102 (16)0.051 (5)*
H12C1.0542 (19)0.3761 (16)0.4339 (16)0.048 (5)*
H21C0.863500.537200.417300.0380*
H22C0.790600.416700.429600.0380*
H31C0.832600.637600.204900.0330*
H32C0.672500.602300.269300.0330*
H41C0.461 (2)0.6370 (17)0.0071 (17)0.058 (5)*
H42C0.475 (2)0.5356 (17)0.1562 (17)0.054 (5)*
H51C0.905700.369900.135000.0420*
H52C0.978600.492000.118100.0420*
H61C0.939500.274000.346700.0430*
H62C1.098800.311900.281900.0430*
H3A1.375200.903700.059000.0470*
H4A1.304501.12320−0.035700.0550*
H5A1.073201.207300.010800.0480*
H6A0.910601.072600.156100.0380*
H11A0.762 (2)0.793 (2)0.3786 (19)0.078 (6)*
H22A1.374 (2)0.583 (2)0.3154 (18)0.072 (6)*
H3B0.262800.953000.649200.0400*
H4B0.167801.059400.453100.0480*
H5B0.266900.998300.306600.0460*
H6B0.456300.828500.357500.0370*
H21B0.664 (2)0.691 (2)0.844 (2)0.081 (7)*
U11U22U33U12U13U23
O41C0.0306 (6)0.0590 (7)0.0233 (5)−0.0098 (5)0.0002 (4)−0.0077 (5)
N1C0.0310 (7)0.0316 (7)0.0255 (6)−0.0079 (6)−0.0069 (6)−0.0032 (6)
N41C0.0285 (7)0.0545 (9)0.0257 (7)−0.0019 (6)−0.0009 (6)−0.0138 (7)
C2C0.0382 (9)0.0315 (8)0.0255 (7)−0.0033 (7)−0.0024 (6)−0.0133 (6)
C3C0.0290 (8)0.0272 (7)0.0255 (7)−0.0033 (6)−0.0021 (6)−0.0101 (6)
C4C0.0256 (7)0.0278 (7)0.0216 (7)−0.0058 (6)0.0004 (5)−0.0093 (6)
C5C0.0340 (8)0.0430 (9)0.0282 (8)0.0018 (7)−0.0001 (6)−0.0175 (7)
C6C0.0301 (8)0.0360 (9)0.0356 (8)0.0038 (7)−0.0007 (6)−0.0141 (7)
C41C0.0280 (8)0.0351 (8)0.0256 (7)−0.0061 (6)−0.0006 (6)−0.0155 (6)
O11A0.0307 (6)0.0306 (6)0.0376 (6)0.0049 (5)0.0092 (5)−0.0057 (5)
O12A0.0312 (6)0.0454 (7)0.0307 (6)0.0011 (5)0.0005 (5)0.0063 (5)
O21A0.0453 (7)0.0335 (6)0.0459 (6)−0.0133 (5)−0.0085 (5)−0.0116 (5)
O22A0.0294 (6)0.0271 (6)0.0485 (6)0.0029 (5)−0.0075 (5)−0.0178 (5)
C1A0.0279 (7)0.0259 (7)0.0211 (7)−0.0046 (6)−0.0022 (6)−0.0083 (6)
C2A0.0253 (7)0.0283 (8)0.0249 (7)−0.0062 (6)−0.0011 (6)−0.0083 (6)
C3A0.0290 (8)0.0378 (9)0.0386 (8)−0.0059 (7)0.0051 (7)−0.0083 (7)
C4A0.0402 (10)0.0367 (9)0.0403 (9)−0.0137 (8)0.0060 (7)0.0005 (8)
C5A0.0446 (10)0.0242 (8)0.0376 (8)−0.0041 (7)−0.0045 (7)−0.0016 (7)
C6A0.0342 (8)0.0277 (8)0.0289 (7)0.0005 (7)−0.0034 (6)−0.0089 (6)
C11A0.0287 (8)0.0271 (8)0.0237 (7)−0.0024 (6)−0.0004 (6)−0.0106 (6)
C21A0.0242 (7)0.0302 (8)0.0282 (7)−0.0058 (6)0.0049 (6)−0.0110 (6)
O11B0.0377 (6)0.0231 (5)0.0381 (6)0.0013 (5)0.0143 (5)−0.0056 (5)
O12B0.0278 (6)0.0373 (6)0.0324 (5)0.0012 (5)0.0100 (4)−0.0083 (5)
O21B0.0281 (6)0.0522 (7)0.0244 (5)−0.0004 (5)−0.0019 (4)−0.0104 (5)
O22B0.0407 (7)0.0563 (8)0.0295 (6)0.0060 (6)0.0030 (5)−0.0175 (5)
C1B0.0209 (7)0.0206 (7)0.0265 (7)−0.0045 (6)0.0001 (5)−0.0085 (6)
C2B0.0244 (7)0.0214 (7)0.0281 (7)−0.0050 (6)0.0007 (6)−0.0099 (6)
C3B0.0347 (8)0.0274 (8)0.0377 (8)0.0014 (7)0.0010 (7)−0.0165 (7)
C4B0.0372 (9)0.0265 (8)0.0493 (10)0.0096 (7)−0.0118 (7)−0.0132 (7)
C5B0.0420 (9)0.0306 (8)0.0355 (8)0.0016 (7)−0.0176 (7)−0.0092 (7)
C6B0.0345 (8)0.0299 (8)0.0292 (7)−0.0024 (7)−0.0057 (6)−0.0139 (6)
C11B0.0238 (7)0.0266 (7)0.0232 (7)−0.0022 (6)0.0017 (6)−0.0103 (6)
C21B0.0308 (8)0.0245 (7)0.0273 (7)−0.0033 (6)0.0017 (6)−0.0103 (6)
O41C—C41C1.2413 (17)C5C—H51C0.9700
O11A—C11A1.3144 (18)C5C—H52C0.9700
O12A—C11A1.2172 (19)C6C—H61C0.9700
O21A—C21A1.220 (2)C6C—H62C0.9700
O22A—C21A1.3062 (18)C1A—C11A1.4934 (19)
O11A—H11A1.00 (2)C1A—C2A1.399 (2)
O22A—H22A0.90 (2)C1A—C6A1.391 (2)
O11B—C11B1.2537 (18)C2A—C21A1.500 (2)
O12B—C11B1.2557 (17)C2A—C3A1.392 (2)
O21B—C21B1.3140 (18)C3A—C4A1.387 (3)
O22B—C21B1.2211 (17)C4A—C5A1.373 (3)
O21B—H21B0.99 (2)C5A—C6A1.386 (2)
N1C—C6C1.491 (2)C3A—H3A0.9300
N1C—C2C1.494 (2)C4A—H4A0.9300
N41C—C41C1.332 (2)C5A—H5A0.9300
N1C—H12C0.953 (18)C6A—H6A0.9300
N1C—H11C0.932 (19)C1B—C2B1.405 (2)
N41C—H42C0.930 (18)C1B—C11B1.509 (2)
N41C—H41C0.979 (19)C1B—C6B1.3918 (19)
C2C—C3C1.5123 (19)C2B—C3B1.386 (2)
C3C—C4C1.534 (2)C2B—C21B1.4954 (19)
C4C—C5C1.523 (2)C3B—C4B1.383 (2)
C4C—C41C1.5117 (19)C4B—C5B1.381 (2)
C5C—C6C1.523 (2)C5B—C6B1.380 (2)
C2C—H21C0.9700C3B—H3B0.9300
C2C—H22C0.9700C4B—H4B0.9300
C3C—H31C0.9700C5B—H5B0.9300
C3C—H32C0.9700C6B—H6B0.9300
C4C—H4C0.9800
C11A—O11A—H11A106.6 (12)C2A—C1A—C11A118.40 (13)
C21A—O22A—H22A112.4 (12)C3A—C2A—C21A119.76 (14)
C21B—O21B—H21B113.9 (11)C1A—C2A—C3A119.05 (15)
C2C—N1C—C6C112.01 (12)C1A—C2A—C21A120.92 (12)
H11C—N1C—H12C107.8 (15)C2A—C3A—C4A120.14 (16)
C6C—N1C—H11C110.2 (12)C3A—C4A—C5A120.62 (16)
C2C—N1C—H11C109.5 (12)C4A—C5A—C6A120.06 (17)
C2C—N1C—H12C108.5 (11)C1A—C6A—C5A119.96 (15)
C6C—N1C—H12C108.8 (13)O12A—C11A—C1A121.18 (13)
H41C—N41C—H42C121.8 (16)O11A—C11A—O12A123.45 (13)
C41C—N41C—H42C118.5 (11)O11A—C11A—C1A115.38 (13)
C41C—N41C—H41C119.7 (11)O22A—C21A—C2A114.51 (14)
N1C—C2C—C3C109.73 (11)O21A—C21A—C2A121.23 (13)
C2C—C3C—C4C110.03 (13)O21A—C21A—O22A124.16 (16)
C5C—C4C—C41C113.04 (12)C2A—C3A—H3A120.00
C3C—C4C—C5C110.14 (12)C4A—C3A—H3A120.00
C3C—C4C—C41C110.15 (13)C5A—C4A—H4A120.00
C4C—C5C—C6C110.52 (12)C3A—C4A—H4A120.00
N1C—C6C—C5C110.09 (14)C4A—C5A—H5A120.00
O41C—C41C—C4C120.98 (13)C6A—C5A—H5A120.00
N41C—C41C—C4C116.38 (12)C5A—C6A—H6A120.00
O41C—C41C—N41C122.62 (13)C1A—C6A—H6A120.00
N1C—C2C—H21C110.00C2B—C1B—C6B118.78 (14)
H21C—C2C—H22C108.00C6B—C1B—C11B118.11 (13)
C3C—C2C—H21C110.00C2B—C1B—C11B122.94 (12)
C3C—C2C—H22C110.00C1B—C2B—C21B123.27 (13)
N1C—C2C—H22C110.00C3B—C2B—C21B117.17 (13)
C4C—C3C—H31C110.00C1B—C2B—C3B119.52 (13)
C2C—C3C—H32C110.00C2B—C3B—C4B120.84 (15)
H31C—C3C—H32C108.00C3B—C4B—C5B119.83 (16)
C4C—C3C—H32C110.00C4B—C5B—C6B119.96 (14)
C2C—C3C—H31C110.00C1B—C6B—C5B121.06 (14)
C41C—C4C—H4C108.00O11B—C11B—C1B116.96 (12)
C5C—C4C—H4C108.00O12B—C11B—C1B118.86 (13)
C3C—C4C—H4C108.00O11B—C11B—O12B124.11 (15)
C4C—C5C—H51C110.00O21B—C21B—C2B114.59 (12)
C4C—C5C—H52C110.00O22B—C21B—C2B121.76 (13)
C6C—C5C—H51C110.00O21B—C21B—O22B123.64 (13)
C6C—C5C—H52C110.00C2B—C3B—H3B120.00
H51C—C5C—H52C108.00C4B—C3B—H3B120.00
C5C—C6C—H61C110.00C3B—C4B—H4B120.00
H61C—C6C—H62C108.00C5B—C4B—H4B120.00
C5C—C6C—H62C110.00C4B—C5B—H5B120.00
N1C—C6C—H61C110.00C6B—C5B—H5B120.00
N1C—C6C—H62C110.00C1B—C6B—H6B119.00
C2A—C1A—C6A120.16 (13)C5B—C6B—H6B119.00
C6A—C1A—C11A121.15 (13)
C6C—N1C—C2C—C3C−59.45 (17)C1A—C2A—C21A—O22A−117.75 (15)
C2C—N1C—C6C—C5C58.30 (15)C3A—C2A—C21A—O21A−108.28 (17)
N1C—C2C—C3C—C4C58.11 (16)C3A—C2A—C21A—O22A68.28 (18)
C2C—C3C—C4C—C5C−57.23 (15)C2A—C3A—C4A—C5A−1.1 (3)
C2C—C3C—C4C—C41C177.41 (11)C3A—C4A—C5A—C6A0.7 (3)
C3C—C4C—C5C—C6C56.17 (17)C4A—C5A—C6A—C1A0.7 (2)
C41C—C4C—C5C—C6C179.86 (14)C6B—C1B—C2B—C3B1.3 (2)
C3C—C4C—C41C—O41C97.27 (18)C6B—C1B—C2B—C21B−176.43 (14)
C3C—C4C—C41C—N41C−81.09 (18)C11B—C1B—C2B—C3B−173.80 (14)
C5C—C4C—C41C—O41C−26.4 (2)C11B—C1B—C2B—C21B8.5 (2)
C5C—C4C—C41C—N41C155.23 (16)C2B—C1B—C6B—C5B−0.8 (2)
C4C—C5C—C6C—N1C−56.27 (17)C11B—C1B—C6B—C5B174.56 (14)
C6A—C1A—C2A—C3A1.1 (2)C2B—C1B—C11B—O11B52.9 (2)
C6A—C1A—C2A—C21A−172.89 (13)C2B—C1B—C11B—O12B−130.04 (15)
C11A—C1A—C2A—C3A−172.71 (14)C6B—C1B—C11B—O11B−122.25 (15)
C11A—C1A—C2A—C21A13.3 (2)C6B—C1B—C11B—O12B54.86 (19)
C2A—C1A—C6A—C5A−1.6 (2)C1B—C2B—C3B—C4B−0.8 (2)
C11A—C1A—C6A—C5A172.11 (14)C21B—C2B—C3B—C4B177.07 (14)
C2A—C1A—C11A—O11A−157.57 (14)C1B—C2B—C21B—O21B34.0 (2)
C2A—C1A—C11A—O12A23.0 (2)C1B—C2B—C21B—O22B−147.67 (16)
C6A—C1A—C11A—O11A28.7 (2)C3B—C2B—C21B—O21B−143.76 (15)
C6A—C1A—C11A—O12A−150.80 (15)C3B—C2B—C21B—O22B34.6 (2)
C1A—C2A—C3A—C4A0.2 (2)C2B—C3B—C4B—C5B−0.3 (2)
C21A—C2A—C3A—C4A174.29 (15)C3B—C4B—C5B—C6B0.8 (3)
C1A—C2A—C21A—O21A65.69 (19)C4B—C5B—C6B—C1B−0.3 (2)
D—H···AD—HH···AD···AD—H···A
N1C—H11C···O21A0.932 (19)1.911 (19)2.8287 (18)167.7 (16)
N1C—H12C···O12Ai0.953 (18)2.077 (17)2.8519 (16)137.4 (14)
N1C—H12C···O12Bi0.953 (18)2.204 (17)2.9606 (16)135.6 (14)
N41C—H41C···O22Bii0.979 (19)1.994 (19)2.9494 (17)164.5 (16)
N41C—H42C···O11Biii0.930 (18)2.120 (19)3.0122 (17)160.3 (16)
O11A—H11A···O12B1.00 (2)1.57 (2)2.5635 (15)173 (2)
O21B—H21B···O41Civ0.99 (2)1.58 (2)2.5644 (14)171 (2)
O22A—H22A···O11Bi0.90 (2)1.65 (2)2.5363 (17)170.8 (18)
C3B—H3B···O11Av0.932.553.365 (2)146
C4C—H4C···O11Biii0.982.533.2159 (17)127
C2C—H21C···O12A0.972.543.317 (2)137
C2C—H21C···O12B0.972.553.364 (2)142
C6C—H62C···O21Bi0.972.473.4265 (19)168
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
N1C—H11C⋯O21A0.932 (19)1.911 (19)2.8287 (18)167.7 (16)
N1C—H12C⋯O12Ai0.953 (18)2.077 (17)2.8519 (16)137.4 (14)
N1C—H12C⋯O12Bi0.953 (18)2.204 (17)2.9606 (16)135.6 (14)
N41C—H41C⋯O22Bii0.979 (19)1.994 (19)2.9494 (17)164.5 (16)
N41C—H42C⋯O11Biii0.930 (18)2.120 (19)3.0122 (17)160.3 (16)
O11A—H11A⋯O12B1.00 (2)1.57 (2)2.5635 (15)173 (2)
O21B—H21B⋯O41Civ0.99 (2)1.58 (2)2.5644 (14)171 (2)
O22A—H22A⋯O11Bi0.90 (2)1.65 (2)2.5363 (17)170.8 (18)

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) .

  9 in total

1.  A short history of SHELX.

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

2.  Graph-set analysis of hydrogen-bond patterns in organic crystals.

Authors:  M C Etter; J C MacDonald; J Bernstein
Journal:  Acta Crystallogr B       Date:  1990-04-01

3.  Hydrogen bonding in the anhydrous 1:1 proton-transfer compounds of isonipecotamide with nitro-substituted benzoic acids: the salts of the three isomeric mononitrobenzoic acids and of 3,5-dinitrobenzoic acid.

Authors:  Graham Smith; Urs D Wermuth
Journal:  Acta Crystallogr C       Date:  2010-11-19       Impact factor: 1.172

4.  Anhydrous 1:1 proton-transfer compounds of isonipecotamide with picric acid and 3,5-dinitrosalicylic acid: 4-carbamoylpiperidinium 2,4,6-trinitrophenolate and two polymorphs of 4-carbamoylpiperidinium 2-carboxy-4,6-dinitrophenolate.

Authors:  Graham Smith; Urs D Wermuth
Journal:  Acta Crystallogr C       Date:  2010-11-19       Impact factor: 1.172

5.  4-Carbamoylpiperidinium acetate monohydrate.

Authors:  Graham Smith; Urs D Wermuth
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-11-13

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Authors:  Graham Smith; Urs D Wermuth; David J Young
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-11-13

7.  4-Carbamoylpiperidinium phenyl-acetate hemihydrate.

Authors:  Graham Smith; Urs D Wermuth
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-11-20

8.  4-Carbamoylpiperidinium 5-nitro-salicylate.

Authors:  Graham Smith; Urs D Wermuth
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-12-15

9.  Structure validation in chemical crystallography.

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

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