Zobrazeno 1 - 10
of 191
pro vyhledávání: '"Huey Chong, Kwong"'
Autor:
Sabina Yasmin, Saswata Rabi, Avijit Chakraborty, Huey Chong Kwong, Edward R. T. Tiekink, Tapashi Ghosh Roy
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 12, Pp 1316-1322 (2021)
The title CuII macrocyclic complex salt tetrahydrate, [Cu(C22H46N6O2)](C2H3O2)2·4H2O, sees the metal atom located on a centre of inversion and coordinated within a 4 + 2 (N4O2) tetragonally distorted coordination geometry; the N atoms are derived fr
Externí odkaz:
https://doaj.org/article/dcf5ee44bf484adbaab18ab230ff0424
Autor:
Ming Yueh Tan, Huey Chong Kwong, Karen A. Crouse, Thahira B. S. A. Ravoof, Edward R. T. Tiekink
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 8, Pp 788-794 (2021)
The title thiourea derivative, C17H19N3OS, adopts a U-shaped conformation with the dihedral angle between the terminal aromatic rings being 73.64 (5)°. The major twist in the molecule occurs about the ethane bond with the Ci—Ce—Ce—Cb torsion a
Externí odkaz:
https://doaj.org/article/103d1d9aff6e4089adf78aff840e344f
Autor:
Ming Yueh Tan, Huey Chong Kwong, Karen A. Crouse, Thahira B. S. A. Ravoof, Edward R. T. Tiekink
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 8, Pp 839-846 (2021)
The title zinc bis(thiosemicarbazone) complex, [Zn(C22H17N4O2S)2], comprises two N,S-donor anions, leading to a distorted tetrahedral N2S2 donor set. The resultant five-membered chelate rings are nearly planar and form a dihedral angle of 73.28 (3)°
Externí odkaz:
https://doaj.org/article/63df45c1139d4155b71a18340388b218
Autor:
Enis Nadia Md Yusof, Huey Chong Kwong, Thiruventhan Karunakaran, Thahira B. S. A. Ravoof, Edward R. T. Tiekink
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 3, Pp 286-293 (2021)
The title diorganotin Schiff base derivative, [Sn(C4H9)2(C15H13N3O2S)], features a penta-coordinated tin centre defined by the N,O,S-donor atoms of the di-anionic Schiff base ligand and two methylene-C atoms of the n-butyl substituents. The resultant
Externí odkaz:
https://doaj.org/article/4abb908ddb7b4082a3946a32064d6ff4
Autor:
Zi Han Loh, Huey Chong Kwong, Kok Wai Lam, Soek Sin Teh, Gwendoline Cheng Lian Ee, Ching Kheng Quah, Anthony Siong Hock Ho, Siau Hui Mah
Publikováno v:
Journal of Enzyme Inhibition and Medicinal Chemistry, Vol 36, Iss 1, Pp 627-639 (2021)
A new series of 3-O-substituted xanthone derivatives were synthesised and evaluated for their anti-cholinergic activities against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). The results indicated that the xanthone derivatives posses
Externí odkaz:
https://doaj.org/article/b426022c0bd84b398e44a85d921c2c58
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 8, Pp 1284-1290 (2020)
The title phosphanegold(I) thiolate, C26H22AuFNOPS or [Au(C8H7FNOS)(C18H15P)], has the AuI centre coordinated by phosphane-P [2.2494 (8) Å] and thiolate-S [2.3007 (8) Å] atoms to define a close to linear geometry [P—Au—S = 176.10 (3)°]. The th
Externí odkaz:
https://doaj.org/article/54517fb14bb74f14acfa9223e3e67822
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 8, Pp 1245-1250 (2020)
The complete molecule of the title hydrazine carbodithioate derivative, C32H30N4O2S4, is generated by a crystallographic twofold axis that bisects the disulfide bond. The molecule is twisted about this bond with the C—S—S—C torsion angle of 90.
Externí odkaz:
https://doaj.org/article/a67bd9ed92914fd7ae80051a63f8be0c
Autor:
Sofia Dallasta Pedroso, Ignez Caracelli, Julio Zukerman-Schpector, Monica Soto-Monsalve, Regina H. De Almeida Santos, Carlos Roque D. Correia, Ariel L. Llanes Garcia, Huey Chong Kwong, Edward R. T. Tiekink
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 7, Pp 1080-1086 (2020)
The title compound, C23H24N2O9, is a tetra-substituted pyrrolidine derivative with a twisted conformation, with the twist evident in the C—C bond bearing the adjacent acetyloxy substituents. These are flanked on one side by a C-bound 4-methoxypheny
Externí odkaz:
https://doaj.org/article/6850e9d97ba742748330c692e9a534a4
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 7, Pp 1051-1056 (2020)
The title compound, C20H20N4O3, is constructed about a tri-substituted 1,2,3-triazole ring, with the substituent at one C atom flanked by the C and N atoms being a substituted amide group, and with the adjacent C and N atoms bearing phenyl and benzyl
Externí odkaz:
https://doaj.org/article/8a46c28621fe4c08b119e10e6d8b4564
Autor:
Nadia Liyana Khairuanuar, Karen A. Crouse, Huey Chong Kwong, Sang Loon Tan, Edward R. T. Tiekink
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 7, Pp 990-997 (2020)
The title hydrazine carbodithioate chloroform hemisolvate, 2C15H14N2O2S2·CHCl3, comprises two independent hydrazine carbodithioate molecules, A and B, and a chloroform molecule; the latter is statistically disordered about its molecular threefold ax
Externí odkaz:
https://doaj.org/article/266e55b2bc4540669357fce623913c5c