Results
author = "Tiekink, Edward R. T."
4-Dimethylamino-1-(4-methoxyphenyl)-2,5-dioxo-2,5-dihydro-1H-pyrrole-3-carbonitrile
Author(s) :
Abdel-Wahab, Bakr F.
,
Mohamed, Hanan A.
,
Farahat, Abdelbasset A.
,
Ng, Seik Weng
,
Tiekink, Edward R. T.
Description :
In the title compound, C14H13N3O3, a twist occurs, as seen in the dihedral angle of 53.60 (12)° between the pyrrole and benzene rings. A three-dimensional architecture is formed in the crystal whereby layers of molecules in the ac plane are connected by C—H⋯O and C—H⋯π interactions.
Repository :
Europe PubMed Central
Language(s) :
English
1-Benzoyl-3-(4-chlorophenyl)thiourea dichloromethane hemisolvate
Author(s) :
Selvakumaran, N.
,
Sheeba, M. Mary
,
Karvembu, R.
,
Ng, Seik Weng
,
Tiekink, Edward R. T.
Description :
In the title hemisolvate, C14H11ClN2OS·0.5CH2Cl2, an anti disposition is found for the thione and ketone atoms, as well as the N—H H atoms; the dichloromethane C atom lies on a twofold axis. The central chromophore (including the two adjacent ipso C atoms) is planar (r.m.s. deviation = 0.021 Å) owi...
Repository :
Europe PubMed Central
Language(s) :
English
X-Ray Structure and In Vitro Anti-Tumoural Activity of the Dimeric Bis[(2-Phenyl-1,2-Dicarba-Closo-Dodecaborane-1-Carboxylato)-Di-n-Butyltin] Oxide
Author(s) :
Tiekink, Edward R. T.
,
Gielen, Marcel
,
Bouhdid, Abdeslam
,
Willem, Rudolph
,
Bregadze, Vladimir I.
,
Ermanson, Lidia V.
Description :
X-ray diffraction studies reveal the structure of {[(2-C6H5-1,2-C2B10H10-1-COO)Bu2Sn]2O}2, 1, to conform to the common motif found for {[(R′COO)R2Sn]2O}2 compounds. The dimer features a central Bu2Sn2O2 unit (two-fold symmetry) with the two Bu2Sn groups being linked via bridging oxygen atoms, each o...
Repository :
Europe PubMed Central
Language(s) :
English
Synthesis, Characterisation and Antifungal Activities of Some New Copper(II) Complexes of Isomeric 3,5,7,7,10,12,14,14-Octamethyl-1,4,8,11-Tetraazacyclotetradecanes
Author(s) :
Hazari, Saroj K. S.
,
Roy, Tapashi G.
,
Dey, Benu K.
,
Das, Suvash C.
,
Tiekink, Edward R. T.
Description :
Three isomeric Me8[14]anes, LA, LB and LC, undergo complexation with copper(II) salts to form a series of [CuLXn(H2O)x]Xy.(H2O)z complexes where L = LA, LB and LC; X = Cl, Br, NO3; n, x, y and z may have values of 0, 1 or 2. The complexes have been characterised on the basis of analytical, spectrosc...
Repository :
Europe PubMed Central
Language(s) :
English
Preparation and Anti-Tumour Activity of Some Arylbismuth(III) Oxine Complexes
Author(s) :
Smith, Katharine A.
,
Deacon, Glen B.
,
Jackson, W. Roy
,
Tiekink, Edward R. T.
,
Rainone, Silvina
,
Webster, Lorraine K.
Description :
New arylbismuth(lll) oxinates, PhBi(MeOx)2, (p-MeC6H4)Bi(Ox)2, (p-MeC6H4)Bi(MeOx)2, (p-ClC6H4)Bi(Ox)2, and (p-ClC6H4)Bi(MeOx)2 (Ox− = quinolin-8-olate and MeOx−=2-methylquinolin-8-olate) have been prepared by reaction of the appropriate diarylbismuth chlorides with Na(Ox) or Na(MeOx) in the presence...
Repository :
Europe PubMed Central
Language(s) :
English
1-Benzoyl-5-phenyl-2-(propan-2-yl)-1,2,3,4-tetrahydropyrimidin-4-one
Author(s) :
Caracelli, Ignez
,
Zukerman-Schpector, Julio
,
Amaral, Mônica F. Z. J.
,
Stefani, Hélio A.
,
Tiekink, Edward R. T.
Description :
The tetrahydropyrimidinone ring in the title compound, C20H20N2O2, is in a half-boat conformation with the N—C—N C atom 0.580 (2) Å out of the plane defined by the remaining five atoms. In the crystal structure, molecules are connected into centrosymmetric dimers via N—H⋯O interactions. The dime...
Repository :
Europe PubMed Central
Language(s) :
English
4-(Pyrimidin-2-yl)-1-thia-4-azaspiro[4.5]decan-3-one
Author(s) :
Neuenfeldt, Patrícia D.
,
Drawanz, Bruna B.
,
Cunico, Wilson
,
Tiekink, Edward R. T.
,
Wardell, James L.
,
Wardell, Solange M. S. V.
Description :
The title compound, C12H15N3OS, features an envelope conformation for the 1,3-thiazolidin-4-one ring with the S atom as the flap atom. The pyrimidine ring is almost orthogonal to the 1,3-thiazolidin-4-one ring as indicated by the N—C—C—N torsion angle of −111.96 (18)°. Supramolecular dimers are f...
Repository :
Europe PubMed Central
Language(s) :
English
Bis[2-(ethoxycarbonylamino)ethanaminium] hexabromidostannate
Author(s) :
Howie, R. Alan
,
de Lima, Geraldo M.
,
Tiekink, Edward R. T.
,
Wardell, James L.
,
Wardell, Solange M. S. V.
Description :
In the title salt, (C5H13N2O2)2[SnBr6], the Sn atom (site symmetry ) exists in a slightly distorted octahedral geometry. The cation is non-planar as the terminal CH2NH3
+ residue lies below the plane defined by the remaining non-H atoms. In the crystal, cations associate via N—H⋯O hy...
Repository :
Europe PubMed Central
Language(s) :
English
3-[(E)-(7-Chloro-4-quinolyl)hydrazonomethyl]benzonitrile monohydrate
Author(s) :
de Ferreira, Marcelle L.
,
de Souza, Marcus V. N.
,
Howie, R. Alan
,
Tiekink, Edward R. T.
,
Wardell, James L.
,
Wardell, Solange M. S. V.
Description :
The title monohydrate, C17H11ClN4·H2O, features an essentially planar organic molecule, as seen in the dihedral angle of 2.42 (8)° formed between the quinoline and benzene planes. The conformation about the imine bond is E, and the N—H group is oriented towards the quinoline residue. The major feat...
Repository :
Europe PubMed Central
Language(s) :
English
4-[(2-Chloroethyl)amino]quinolinium chloride monohydrate
Author(s) :
de Souza, Marcus V. N.
,
Tiekink, Edward R. T.
,
Wardell, James L.
,
Wardell, Solange M. S. V.
Description :
In the title salt hydrate, C11H12ClN2
+·Cl−·H2O, the quinolinium core is essentially planar (r.m.s. deviation = 0.027 Å) with the chloroethyl side chain being almost orthogonal to the core [C—N—C—C torsion angle = −80.0 (3)°]. In the crystal packing, the water molecule bridges thre...
Repository :
Europe PubMed Central
Language(s) :
English