4-Chloro-2′,4′,6′-triethyl­benzophenone: a redetermination

Redetermination of loperamide monohydrate

The structure of the title compound {systematic name: 4-[4-(4-chloro-phen-yl)-4-hy-droxy-piperidin-1-yl]-N,N-dimethyl-2,2-di-phenyl-butanamide monohydrate}, C(29)H(33)ClN(2)O(2)·H(2)O, has been redetermined at 170 (2) K. The redetermination is of significantly higher precision than the previous structure determination at room temperature and includes the H-atom coordinates that were not include...

Low-temperature redetermination of 4-chloro-2-[tris­(hydroxy­meth­yl)methyl­imino­meth­yl]phenol as zwitterionic 4-chloro-2-[tris­(hydroxy­meth­yl)methyl­iminiometh­yl]phenolate

The title Schiff base, C(11)H(14)ClNO(4), originally refined as a neutral mol-ecule [Chumakov, Antosyak, Mazus, Tsapkov & Samus (2000), Crystallogr. Rep.45, 945-950], is inter-preted as a zwitterionic compound. There are two independent zwitterions in the asymmetric unit. Five of the six hydr-oxy groups of the -CH(2)OH fragments are disordered. In one zwitterion, two are disordered over three s...

CAS Name: 4-Chloro-2-methylbenzenamine Synonyms: 2-Amino-5-chlorotoluene; 3-chloro-6-aminotoluene; 4-chloro-2- methylaniline; 4-chloro-6-methylaniline; (4-chloro-2-methylphenyl)amine; 4-chloro-2-toluidine; 4-chloro-ortho-toluidine; 5-chloro-2-aminotoluene; para-chloro-ortho-toluidine; 2-methyl-4-chloroaniline; 2-methyl-4- chlorobenzeneamine

Redetermination of 4-cyano­pyridine N-oxide

In the title pyridine N-oxide derivative, C(6)H(4)N(2)O, the 4-cyano substituent almost lies in the mean plane of the pyridine ring (r.m.s deviation of all non-H atoms = 0.004 Å). This redetermination results in a crystal structure with significantly higher precision [N-O bond length is 1.2997 (15) compared with 1.303 (5) Å in the original] than the original determination, which was recorded us...

Redetermination of poly[aquadi-μ3-oxy­diacetato-dicopper(II)]

The title complex, [Cu(2)(C(4)H(4)O(5))(2)(H(2)O)](n), has a two-dimensional layer structure. The Cu atom has a distorted octa-hedral (CuO(6)) environment and is coordinated by four carboxyl-ate group O atoms from three different oxydiacetate ligands in a planar arrangement and one half-occupancy water mol-ecule and an ether O atom in the axial positions. In the crystal structure, weak intra- a...