Ammonium violurate: a compact structure with extensive hydrogen bonding in three dimensions [0.03%]
氨紫脲酸铵：三维广泛氢键缔合的紧凑结构
Gary S Nichol,William Clegg
Gary S Nichol
The title compound [systematic name: ammonium pyrimidine-2,4-5,6(1H,3H)-tetrone 5-oximate], NH(4)(+).C(4)H(2)N(3)O(4)(-), crystallizes from water in the triclinic space group P/overline{1} and is ismorphous with a known rubidium complex [Gi...
Iván Brito,Aldo Mundaca,Alejandro Cárdenas et al.
Iván Brito et al.
In the title disulfide, C(12)H(8)N(6)O(2)S(2), all bond lengths and angles are within normal ranges, and the molecules are linked into centrosymmetric R(2)(2)(20) dimers by simple C-H...N interactions. Weak intermolecular C-H...pi(arene) an...
2,3,5,6-Tetrakis[3,5-bis(trifluoromethyl)phenoxy]-2,5-bis(dimethylamino)2,3,5,6-tetrabora-1,4-dioxane diethyl ether 0.667-solvate [0.03%]
2，3，5，6-四[3，5-双(三氟甲基)苯氧基]-2，5-双二甲胺基-2，3，5，6-四硼杂-1，4-二氧六环二乙醚0.667一水合物
William Clegg,Todd B Marder,Sylvain Nlate et al.
William Clegg et al.
The title compound, C(36)H(26)B(4)F(24)N(2)O(6).0.667C(4)H(10)O, has centrosymmetric tetraboradioxane molecules, half each of three of these comprising the asymmetric unit together with a molecule of diethyl ether. Disorder affects most of ...
The 7-bromo derivative of 2-amino-2'-deoxytubercidin fluorinated at the sugar moiety [0.03%]
糖环氟化的7-溴-2-氨基-2'-脱氧筒箭毒碱类似物
Frank Seela,Ping Ding,Xiaohua Peng et al.
Frank Seela et al.
The title compound, 2,4-diamino-5-bromo-7-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-7H-pyrrolo[2,3-d]pyrimidine, C(11)H(13)BrFN(5)O(3), shows two conformations of the exocyclic C4'-C5' bond, with the torsion angle gamma (O5'-C5'-C4'-C3') b...
Acyclic Schiff base salts derived from 1,3-diaminopropane and 1,3-diamino-2-hydroxypropane [0.03%]
由1,3-二氨基 propane和1,3-二氨基-2-醇 propane衍生的无环希夫碱盐
Cecilia Rodríguez de Barbarín,Sylvain Bernès,Blanca Nájera et al.
Cecilia Rodríguez de Barbarín et al.
Two salts of acyclic Schiff base cationic ligands, namely N,N'-bis(2-nitrobenzyl)propane-1,3-diammonium dichloride monohydrate, C(17)H(22)N(4)O(4)(2+).2Cl(-).H(2)O, (I), and 2-hydroxy-N,N'-bis(2-nitrobenzyl)propane-1,3-diammonium dichloride...
A new conformer of 1,4,7-tris(p-tolylsulfonyl)-1,4,7-triazacyclononane [0.03%]
1,4,7-三对甲苯磺酰基-1,4,7-三氮杂环壬烷的一种新的构象异构体
Vânia André,Sónia Barroso,Ana M Martins et al.
Vânia André et al.
A second polymorphic form (form II) of the previously reported 1,4,7-tris(p-tolylsulfonyl)-1,4,7-triazacyclononane (form I), C(27)H(33)N(3)O(6)S(3), is presented. The molecular structures of the two forms display very different conformation...
Hexagonal packing of cis,cis-cyclohexane-1,3,5-tricarboxamide [0.03%]
顺式,顺式-环己烷-1,3,5-三甲酸三酰胺的蜂窝状堆积模式
Binoy K Saha
Binoy K Saha
The title compound, C(9)H(15)N(3)O(3), which has crystallographically imposed threefold symmetry, crystallizes as a hexagonal columnar structure. The crystal structure is stabilized by a less common amide-amide synthon, where one amide grou...
Linda Kaufmann,Hans Wolfram Lerner,Michael Bolte
Linda Kaufmann
A new polymorph of tetraphenyldiboroxane [or oxybis(diphenylborane)], C(24)H(20)B(2)O, (Ia), has been found. It is monoclinic, like the already known form, (Ib), and can be refined in the same space group, namely P2(1)/c, or in the equivale...
Lynay Santacruz,Rodrigo Abonia,Justo Cobo et al.
Lynay Santacruz et al.
In the title compound, C(8)H(12)N(+).C(4)H(3)O(4)(-), there is a short and almost linear but asymmetric O-H...O hydrogen bond in the anion. The ions are linked into C(2)(2)(6) chains by two short and nearly linear N-H...O hydrogen bonds and...
8-tert-Butyl-7-(4-chlorophenyl)-10-phenyl-5,6-dihydro-10H-benzo[h]pyrazolo[3,4-b]quinoline [0.03%]
8-叔丁基-7-(4-氯苯基)-10-苯基-5,6-二氢-10H-苯并吡唑并[3,4-b]喹啉
Jaime Portilla,Jairo Quiroga,Justo Cobo et al.
Jaime Portilla et al.
The title compound, C(30)H(26)ClN(3), crystallizes with Z' = 3 in the P/overline{1} space group. The three independent molecules have very similar, although not identical, conformations, with almost perfect screw-boat forms adopted by the n...