Literature DB >> 21203254

Ethyl 4-(tert-butyl-amino)-3-nitro-benzoate.

Siti Marina Mohd Maidin, Aisyah Saad Abdul Rahim, Hasnah Osman, Reza Kia, Hoong-Kun Fun.   

Abstract

In the title compound, C(13)H(18)N(2)O(4), intra-molecular N-H⋯O, N-H⋯N and C-H⋯O (× 3) hydrogen bonds generate S(6) and S(5) ring motifs. There are two crystallographically independent mol-ecules (A and B) in the asymmetric unit. The nitro group is coplanar with the benzene ring, with O-N-C-C torsion angles of -0.33 (13) and 0.93 (14)° in mol-ecules A and B, respectively. In the crystal structure, neighbouring mol-ecules are linked together by inter-molecular C-H⋯O hydrogen bonds. In addition, the crystal structure is stabilized by π-π inter-actions with centroid-centroid distances ranging from 3.7853 (6) to 3.8625 (6) Å.

Entities:  

Year:  2008        PMID: 21203254      PMCID: PMC2962174          DOI: 10.1107/S160053680802206X

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


Related literature

For literature on hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). For values of bond lengths, see: Allen et al. (1987 ▶). For related literature, see, for example: Göker et al. (1998 ▶); Anderson (2005 ▶); Kakei et al. (1993 ▶).

Experimental

Crystal data

C13H18N2O4 M = 266.29 Monoclinic, a = 16.0471 (5) Å b = 6.6417 (2) Å c = 30.0180 (9) Å β = 121.688 (2)° V = 2722.37 (14) Å3 Z = 8 Mo Kα radiation μ = 0.10 mm−1 T = 100.0 (1) K 0.51 × 0.43 × 0.17 mm

Data collection

Bruker SMART APEXII CCD area-detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2005 ▶) T min = 0.879, T max = 0.984 63326 measured reflections 8141 independent reflections 6368 reflections with I > 2σ(I) R int = 0.033

Refinement

R[F 2 > 2σ(F 2)] = 0.046 wR(F 2) = 0.133 S = 1.04 8141 reflections 351 parameters H-atom parameters constrained Δρmax = 0.53 e Å−3 Δρmin = −0.24 e Å−3 Data collection: APEX2 (Bruker, 2005 ▶); cell refinement: APEX2; data reduction: SAINT (Bruker, 2005 ▶); program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2003 ▶). Crystal structure: contains datablocks global, I. DOI: 10.1107/S160053680802206X/at2594sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S160053680802206X/at2594Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C13H18N2O4F000 = 1136
Mr = 266.29Dx = 1.299 Mg m3
Monoclinic, P21/cMo Kα radiation λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 9969 reflections
a = 16.0471 (5) Åθ = 2.5–30.1º
b = 6.6417 (2) ŵ = 0.10 mm1
c = 30.0180 (9) ÅT = 100.0 (1) K
β = 121.688 (2)ºPlate, yellow
V = 2722.37 (14) Å30.51 × 0.43 × 0.17 mm
Z = 8
Bruker SMART APEXII CCD area-detector diffractometer8141 independent reflections
Radiation source: fine-focus sealed tube6368 reflections with I > 2σ(I)
Monochromator: graphiteRint = 0.033
T = 100.0(1) Kθmax = 30.3º
φ and ω scansθmin = 1.5º
Absorption correction: multi-scan(SADABS; Bruker, 2005)h = −21→22
Tmin = 0.879, Tmax = 0.984k = −9→9
63326 measured reflectionsl = −41→42
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.047H-atom parameters constrained
wR(F2) = 0.133  w = 1/[σ2(Fo2) + (0.0652P)2 + 0.787P] where P = (Fo2 + 2Fc2)/3
S = 1.04(Δ/σ)max = 0.001
8141 reflectionsΔρmax = 0.53 e Å3
351 parametersΔρmin = −0.24 e Å3
Primary atom site location: structure-invariant direct methodsExtinction correction: none
Experimental. The low-temperature data was collected with the Oxford Cyrosystem Cobra low-temperature attachment.
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s 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 > 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
O1A1.01188 (6)0.50707 (13)0.90700 (3)0.02027 (18)
O2A0.87073 (6)0.53054 (14)0.90534 (3)0.02371 (19)
O3A0.57249 (6)0.54152 (13)0.73478 (3)0.02243 (18)
O4A0.56803 (6)0.54680 (13)0.66152 (3)0.02250 (18)
N1A0.61441 (6)0.54228 (13)0.71013 (4)0.01589 (18)
N2A0.73120 (6)0.54415 (13)0.66080 (3)0.01583 (18)
H2NA0.66820.54970.64440.019*
C1A0.76647 (7)0.53258 (15)0.79329 (4)0.0143 (2)
H1A0.72810.53350.80890.017*
C2A0.72036 (7)0.53705 (15)0.73898 (4)0.01349 (19)
C3A0.77441 (7)0.53716 (14)0.71324 (4)0.01347 (19)
C4A0.87825 (7)0.52932 (15)0.74731 (4)0.0151 (2)
H4A0.91800.52710.73250.018*
C5A0.92253 (7)0.52490 (15)0.80055 (4)0.0149 (2)
H5A0.99200.52040.82170.018*
C6A0.86747 (7)0.52682 (15)0.82473 (4)0.0142 (2)
C7A0.91408 (8)0.52224 (16)0.88226 (4)0.0159 (2)
C8A1.06291 (8)0.5008 (2)0.96363 (4)0.0252 (3)
H8A1.04120.38280.97510.030*
H8B1.04890.62420.97710.030*
C9A1.17025 (9)0.4861 (2)0.98412 (5)0.0347 (3)
H9A1.20690.48771.02250.052*
H9B1.19040.60060.97130.052*
H9C1.18370.36030.97200.052*
C10A0.77667 (8)0.54745 (16)0.62878 (4)0.0163 (2)
C11A0.83246 (8)0.35165 (17)0.63510 (4)0.0203 (2)
H11A0.78770.23700.62540.030*
H11B0.88610.33730.67160.030*
H11C0.85930.35550.61240.030*
C12A0.68959 (9)0.56150 (19)0.57218 (4)0.0233 (2)
H12A0.64580.44650.56470.035*
H12B0.71360.56000.54810.035*
H12C0.65370.68690.56760.035*
C13A0.84047 (8)0.73502 (17)0.64034 (4)0.0195 (2)
H13A0.89270.73590.67740.029*
H13B0.80000.85600.63240.029*
H13C0.86950.73310.61860.029*
O1B0.49200 (5)0.43211 (13)0.10402 (3)0.02139 (18)
O2B0.63293 (6)0.45058 (13)0.10484 (3)0.02286 (18)
O3B0.93204 (6)0.47400 (13)0.27341 (3)0.02111 (18)
O4B0.93898 (6)0.47557 (13)0.34743 (3)0.02151 (18)
N1B0.89147 (6)0.47252 (13)0.29872 (4)0.01529 (18)
N2B0.77682 (6)0.47199 (14)0.34950 (3)0.01565 (18)
H2NB0.84070.47670.36710.019*
C1B0.73817 (7)0.46115 (15)0.21633 (4)0.01401 (19)
H1B0.77570.46080.20020.017*
C2B0.78566 (7)0.46722 (15)0.27069 (4)0.01293 (19)
C3B0.73273 (7)0.46737 (15)0.29702 (4)0.01340 (19)
C4B0.62889 (8)0.46322 (16)0.26366 (4)0.0157 (2)
H4B0.59000.46450.27900.019*
C5B0.58317 (7)0.45740 (15)0.21029 (4)0.0154 (2)
H5B0.51370.45450.18950.019*
C6B0.63721 (7)0.45564 (15)0.18553 (4)0.01401 (19)
C7B0.58976 (8)0.44669 (16)0.12800 (4)0.0168 (2)
C8B0.43816 (8)0.4179 (2)0.04737 (4)0.0260 (3)
H8C0.37510.34840.03500.031*
H8D0.47620.33700.03650.031*
C9B0.41883 (9)0.6226 (2)0.02271 (5)0.0302 (3)
H9D0.38040.6089−0.01550.045*
H9E0.48120.68880.03350.045*
H9F0.38220.70380.03400.045*
C10B0.73206 (8)0.46992 (16)0.38189 (4)0.0172 (2)
C11B0.67381 (8)0.27595 (17)0.37340 (4)0.0217 (2)
H11D0.61890.26980.33700.032*
H11E0.64870.27470.39690.032*
H11F0.71660.15930.38090.032*
C12B0.81999 (9)0.47351 (19)0.43837 (4)0.0246 (2)
H12D0.85820.59640.44410.037*
H12E0.86130.35550.44450.037*
H12F0.79660.47100.46270.037*
C13B0.66997 (8)0.65807 (18)0.37269 (5)0.0222 (2)
H13D0.71080.77840.38060.033*
H13E0.64330.65410.39550.033*
H13F0.61600.66230.33600.033*
U11U22U33U12U13U23
O1A0.0132 (3)0.0327 (5)0.0134 (4)0.0004 (3)0.0059 (3)−0.0014 (3)
O2A0.0181 (4)0.0365 (5)0.0190 (4)0.0000 (3)0.0114 (3)−0.0013 (3)
O3A0.0154 (4)0.0298 (5)0.0260 (4)0.0006 (3)0.0135 (3)0.0003 (3)
O4A0.0136 (4)0.0309 (5)0.0186 (4)0.0002 (3)0.0055 (3)−0.0002 (3)
N1A0.0126 (4)0.0142 (4)0.0205 (4)−0.0004 (3)0.0084 (3)−0.0004 (3)
N2A0.0120 (4)0.0192 (4)0.0151 (4)0.0004 (3)0.0062 (3)0.0003 (3)
C1A0.0149 (5)0.0111 (4)0.0189 (5)−0.0006 (3)0.0104 (4)−0.0004 (4)
C2A0.0102 (4)0.0119 (5)0.0175 (5)0.0002 (3)0.0068 (4)0.0002 (4)
C3A0.0135 (4)0.0099 (4)0.0168 (5)−0.0006 (3)0.0078 (4)−0.0003 (3)
C4A0.0127 (4)0.0155 (5)0.0182 (5)0.0003 (4)0.0088 (4)0.0005 (4)
C5A0.0124 (4)0.0145 (5)0.0175 (5)0.0003 (4)0.0076 (4)0.0006 (4)
C6A0.0147 (5)0.0131 (5)0.0148 (5)−0.0004 (4)0.0077 (4)−0.0005 (4)
C7A0.0140 (5)0.0160 (5)0.0170 (5)−0.0009 (4)0.0075 (4)−0.0013 (4)
C8A0.0188 (5)0.0421 (7)0.0122 (5)0.0004 (5)0.0065 (4)−0.0021 (5)
C9A0.0184 (6)0.0630 (10)0.0180 (6)0.0030 (6)0.0063 (5)−0.0027 (6)
C10A0.0161 (5)0.0183 (5)0.0154 (5)−0.0005 (4)0.0088 (4)0.0001 (4)
C11A0.0208 (5)0.0181 (5)0.0240 (5)−0.0002 (4)0.0131 (4)−0.0028 (4)
C12A0.0212 (5)0.0303 (6)0.0157 (5)−0.0009 (5)0.0078 (4)−0.0005 (4)
C13A0.0205 (5)0.0190 (5)0.0203 (5)−0.0011 (4)0.0116 (4)0.0018 (4)
O1B0.0133 (4)0.0343 (5)0.0138 (4)−0.0022 (3)0.0053 (3)0.0013 (3)
O2B0.0181 (4)0.0339 (5)0.0178 (4)0.0012 (3)0.0102 (3)−0.0004 (3)
O3B0.0150 (4)0.0280 (4)0.0238 (4)0.0003 (3)0.0127 (3)0.0009 (3)
O4B0.0136 (4)0.0302 (5)0.0164 (4)0.0002 (3)0.0049 (3)0.0004 (3)
N1B0.0135 (4)0.0134 (4)0.0186 (4)0.0001 (3)0.0081 (3)0.0002 (3)
N2B0.0129 (4)0.0195 (4)0.0143 (4)0.0001 (3)0.0070 (3)0.0001 (3)
C1B0.0144 (4)0.0125 (5)0.0168 (5)0.0004 (3)0.0093 (4)0.0006 (4)
C2B0.0108 (4)0.0113 (4)0.0166 (5)0.0003 (3)0.0072 (4)0.0007 (3)
C3B0.0147 (5)0.0101 (4)0.0151 (5)0.0004 (3)0.0077 (4)0.0010 (3)
C4B0.0137 (4)0.0173 (5)0.0185 (5)0.0004 (4)0.0100 (4)0.0005 (4)
C5B0.0121 (4)0.0151 (5)0.0185 (5)0.0000 (4)0.0076 (4)0.0007 (4)
C6B0.0135 (4)0.0133 (5)0.0148 (5)0.0000 (3)0.0071 (4)0.0009 (3)
C7B0.0152 (5)0.0170 (5)0.0163 (5)0.0001 (4)0.0070 (4)0.0007 (4)
C8B0.0176 (5)0.0410 (7)0.0148 (5)−0.0037 (5)0.0055 (4)−0.0017 (5)
C9B0.0236 (6)0.0469 (8)0.0197 (6)0.0022 (5)0.0111 (5)0.0074 (5)
C10B0.0194 (5)0.0187 (5)0.0158 (5)0.0009 (4)0.0107 (4)0.0007 (4)
C11B0.0255 (6)0.0209 (5)0.0226 (5)−0.0013 (4)0.0154 (5)0.0024 (4)
C12B0.0265 (6)0.0306 (6)0.0152 (5)0.0009 (5)0.0099 (5)0.0008 (4)
C13B0.0242 (5)0.0205 (5)0.0251 (6)0.0019 (4)0.0151 (5)−0.0022 (4)
O1A—C7A1.3418 (13)O1B—C7B1.3424 (13)
O1A—C8A1.4489 (13)O1B—C8B1.4503 (13)
O2A—C7A1.2136 (13)O2B—C7B1.2125 (13)
O3A—N1A1.2340 (12)O3B—N1B1.2332 (12)
O4A—N1A1.2424 (12)O4B—N1B1.2443 (12)
N1A—C2A1.4474 (13)N1B—C2B1.4462 (13)
N2A—C3A1.3470 (13)N2B—C3B1.3463 (13)
N2A—C10A1.4810 (13)N2B—C10B1.4816 (13)
N2A—H2NA0.8617N2B—H2NB0.8733
C1A—C6A1.3827 (14)C1B—C6B1.3809 (14)
C1A—C2A1.3925 (14)C1B—C2B1.3924 (14)
C1A—H1A0.9500C1B—H1B0.9500
C2A—C3A1.4328 (14)C2B—C3B1.4321 (14)
C3A—C4A1.4265 (14)C3B—C4B1.4238 (14)
C4A—C5A1.3663 (14)C4B—C5B1.3683 (14)
C4A—H4A0.9500C4B—H4B0.9500
C5A—C6A1.4076 (14)C5B—C6B1.4076 (14)
C5A—H5A0.9500C5B—H5B0.9500
C6A—C7A1.4784 (14)C6B—C7B1.4778 (14)
C8A—C9A1.4973 (17)C8B—C9B1.5003 (19)
C8A—H8A0.9900C8B—H8C0.9900
C8A—H8B0.9900C8B—H8D0.9900
C9A—H9A0.9800C9B—H9D0.9800
C9A—H9B0.9800C9B—H9E0.9800
C9A—H9C0.9800C9B—H9F0.9800
C10A—C13A1.5320 (15)C10B—C13B1.5302 (15)
C10A—C11A1.5331 (15)C10B—C11B1.5323 (15)
C10A—C12A1.5343 (15)C10B—C12B1.5338 (15)
C11A—H11A0.9800C11B—H11D0.9800
C11A—H11B0.9800C11B—H11E0.9800
C11A—H11C0.9800C11B—H11F0.9800
C12A—H12A0.9800C12B—H12D0.9800
C12A—H12B0.9800C12B—H12E0.9800
C12A—H12C0.9800C12B—H12F0.9800
C13A—H13A0.9800C13B—H13D0.9800
C13A—H13B0.9800C13B—H13E0.9800
C13A—H13C0.9800C13B—H13F0.9800
Cg1···Cg2i3.7853 (6)Cg1···Cg2ii3.8625 (6)
C7A—O1A—C8A115.30 (9)C7B—O1B—C8B116.24 (9)
O3A—N1A—O4A121.71 (9)O3B—N1B—O4B121.87 (9)
O3A—N1A—C2A118.70 (9)O3B—N1B—C2B118.70 (9)
O4A—N1A—C2A119.59 (9)O4B—N1B—C2B119.43 (9)
C3A—N2A—C10A129.22 (9)C3B—N2B—C10B129.04 (9)
C3A—N2A—H2NA113.4C3B—N2B—H2NB115.9
C10A—N2A—H2NA117.3C10B—N2B—H2NB115.0
C6A—C1A—C2A120.74 (9)C6B—C1B—C2B120.85 (9)
C6A—C1A—H1A119.6C6B—C1B—H1B119.6
C2A—C1A—H1A119.6C2B—C1B—H1B119.6
C1A—C2A—C3A122.10 (9)C1B—C2B—C3B121.91 (9)
C1A—C2A—N1A115.83 (9)C1B—C2B—N1B115.79 (9)
C3A—C2A—N1A122.07 (9)C3B—C2B—N1B122.30 (9)
N2A—C3A—C4A121.97 (9)N2B—C3B—C4B121.65 (9)
N2A—C3A—C2A122.98 (9)N2B—C3B—C2B123.11 (9)
C4A—C3A—C2A115.05 (9)C4B—C3B—C2B115.23 (9)
C5A—C4A—C3A122.23 (10)C5B—C4B—C3B122.25 (9)
C5A—C4A—H4A118.9C5B—C4B—H4B118.9
C3A—C4A—H4A118.9C3B—C4B—H4B118.9
C4A—C5A—C6A121.42 (9)C4B—C5B—C6B121.22 (9)
C4A—C5A—H5A119.3C4B—C5B—H5B119.4
C6A—C5A—H5A119.3C6B—C5B—H5B119.4
C1A—C6A—C5A118.45 (9)C1B—C6B—C5B118.54 (9)
C1A—C6A—C7A119.36 (9)C1B—C6B—C7B119.12 (9)
C5A—C6A—C7A122.19 (9)C5B—C6B—C7B122.34 (9)
O2A—C7A—O1A122.82 (10)O2B—C7B—O1B123.56 (10)
O2A—C7A—C6A125.16 (10)O2B—C7B—C6B124.77 (10)
O1A—C7A—C6A112.03 (9)O1B—C7B—C6B111.67 (9)
O1A—C8A—C9A107.65 (9)O1B—C8B—C9B111.18 (11)
O1A—C8A—H8A110.2O1B—C8B—H8C109.4
C9A—C8A—H8A110.2C9B—C8B—H8C109.4
O1A—C8A—H8B110.2O1B—C8B—H8D109.4
C9A—C8A—H8B110.2C9B—C8B—H8D109.4
H8A—C8A—H8B108.5H8C—C8B—H8D108.0
C8A—C9A—H9A109.5C8B—C9B—H9D109.5
C8A—C9A—H9B109.5C8B—C9B—H9E109.5
H9A—C9A—H9B109.5H9D—C9B—H9E109.5
C8A—C9A—H9C109.5C8B—C9B—H9F109.5
H9A—C9A—H9C109.5H9D—C9B—H9F109.5
H9B—C9A—H9C109.5H9E—C9B—H9F109.5
N2A—C10A—C13A111.31 (9)N2B—C10B—C13B111.59 (9)
N2A—C10A—C11A111.21 (9)N2B—C10B—C11B111.24 (9)
C13A—C10A—C11A112.61 (9)C13B—C10B—C11B111.97 (9)
N2A—C10A—C12A104.30 (8)N2B—C10B—C12B104.10 (9)
C13A—C10A—C12A108.24 (9)C13B—C10B—C12B108.70 (9)
C11A—C10A—C12A108.76 (9)C11B—C10B—C12B108.88 (9)
C10A—C11A—H11A109.5C10B—C11B—H11D109.5
C10A—C11A—H11B109.5C10B—C11B—H11E109.5
H11A—C11A—H11B109.5H11D—C11B—H11E109.5
C10A—C11A—H11C109.5C10B—C11B—H11F109.5
H11A—C11A—H11C109.5H11D—C11B—H11F109.5
H11B—C11A—H11C109.5H11E—C11B—H11F109.5
C10A—C12A—H12A109.5C10B—C12B—H12D109.5
C10A—C12A—H12B109.5C10B—C12B—H12E109.5
H12A—C12A—H12B109.5H12D—C12B—H12E109.5
C10A—C12A—H12C109.5C10B—C12B—H12F109.5
H12A—C12A—H12C109.5H12D—C12B—H12F109.5
H12B—C12A—H12C109.5H12E—C12B—H12F109.5
C10A—C13A—H13A109.5C10B—C13B—H13D109.5
C10A—C13A—H13B109.5C10B—C13B—H13E109.5
H13A—C13A—H13B109.5H13D—C13B—H13E109.5
C10A—C13A—H13C109.5C10B—C13B—H13F109.5
H13A—C13A—H13C109.5H13D—C13B—H13F109.5
H13B—C13A—H13C109.5H13E—C13B—H13F109.5
D—H···AD—HH···AD···AD—H···A
N2A—H2NA···O4A0.861.932.6299 (15)138
N2A—H2NA···N1A0.862.542.9361 (15)109
N2B—H2NB···O4B0.871.952.6355 (15)134
N2B—H2NB···N1B0.872.582.9419 (15)106
C1A—H1A···O3A0.952.312.6522 (16)100
C1B—H1B···O3B0.952.312.6498 (16)100
C4A—H4A···O3Biii0.952.503.4124 (17)160
C4B—H4B···O3Aiv0.952.423.2566 (18)147
C5A—H5A···O1A0.952.412.7326 (13)100
C11A—H11A···O2Bv0.982.553.4714 (17)157
C11B—H11F···O2Aii0.982.523.4446 (17)158
C13B—H13D···O2Avi0.982.603.5071 (17)154
Table 1

Selected centroid–centroid distances (Å)

Cg1 and Cg2 are the centroids of the C1A–C6A and C1B–C6B rings, respectively.

Cg1⋯Cg2i3.7853 (6)
Cg1⋯Cg2ii3.8625 (6)

Symmetry codes: (i) ; (ii) .

Table 2

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
N2A—H2NA⋯O4A0.861.932.6299 (15)138
N2A—H2NA⋯N1A0.862.542.9361 (15)109
N2B—H2NB⋯O4B0.871.952.6355 (15)134
N2B—H2NB⋯N1B0.872.582.9419 (15)106
C1A—H1A⋯O3A0.952.312.6522 (16)100
C1B—H1B⋯O3B0.952.312.6498 (16)100
C4A—H4A⋯O3Biii0.952.503.4124 (17)160
C4B—H4B⋯O3Aiv0.952.423.2566 (18)147
C5A—H5A⋯O1A0.952.412.7326 (13)100
C11A—H11A⋯O2Bv0.982.553.4714 (17)157
C11B—H11F⋯O2Aii0.982.523.4446 (17)158
C13B—H13D⋯O2Avi0.982.603.5071 (17)154

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

  4 in total

Review 1.  Evolution of antifungal-drug resistance: mechanisms and pathogen fitness.

Authors:  James B Anderson
Journal:  Nat Rev Microbiol       Date:  2005-07       Impact factor: 60.633

2.  A short history of SHELX.

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

3.  Omeprazole, a proton pump inhibitor, reduces the secretion, synthesis and gene expression of pepsinogen in the rat stomach.

Authors:  N Kakei; M Ichinose; S Tsukada; M Tatematsu; N Tezuka; N Yahagi; M Matsushima; K Miki; K Kurokawa; K Takahashi
Journal:  Biochem Biophys Res Commun       Date:  1993-09-15       Impact factor: 3.575

4.  Synthesis of some new benzimidazolecarboxamides and evaluation of their antimicrobial activity.

Authors:  H Göker; M Tunçbilek; G Ayhan; N Altanlar
Journal:  Farmaco       Date:  1998-06-30
  4 in total
  3 in total

1.  4-Butyl-amino-3-nitro-benzoic acid.

Authors:  Shivanagere Nagojappa Narendra Babu; Aisyah Saad Abdul Rahim; Hasnah Osman; Samuel Robinson Jebas; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2009-04-25

2.  Ethyl 4-fluoro-3-nitro-benzoate.

Authors:  Shivanagere Nagojappa Narendra Babu; Aisyah Saad Abdul Rahim; Hasnah Osman; Ibrahim Abdul Razak; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2009-02-21

3.  4-tert-Butyl-amino-3-nitro-benzoic acid.

Authors:  Shivanagere Nagojappa Narendra Babu; Aisyah Saad Abdul Rahim; Shafida Abd Hamid; Samuel Robinson Jebas; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2009-05-07
  3 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.