Synthesis, X-ray crystal structure and cation binding properties of a tetrahomodioxacalix[4]arene tetraester

1991 ◽  
Vol 10 (3) ◽  
pp. 329-339 ◽  
Author(s):  
Fran�oise Arnaud-Neu ◽  
Suzanne Cremin ◽  
Des Cunningham ◽  
Stephen J. Harris ◽  
Patrick McArdle ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Cation Binding ◽  
Binding Properties ◽  
X Ray

scholarly journals X-Ray Crystal Structure and Cation Binding Properties of a New Phthalide-fused Indoline Derivative

2018 ◽  
Vol 47 (4) ◽  
pp. 755-762 ◽  
Author(s):  
Sheryn Wong ◽  
Jalifah Latip ◽  
Nurul Izzaty Hassan ◽  
Siti Aishah Hasbullah
Keyword(s):  
Crystal Structure ◽  
Cation Binding ◽  
Binding Properties ◽  
X Ray

Synthesis, X-Ray Crystal Structure and Tubulin- Binding Properties of a Benzofuran Analogue of the Potent Cytotoxic Agent Combretastatin A4

1999 ◽  
Vol 52 (8) ◽  
pp. 767 ◽  
Author(s):  
Martin G. Banwell ◽  
Bernard L. Flynn ◽  
Ernest Hamel ◽  
Anthony C. Willis
Keyword(s):  
Crystal Structure ◽  
Cytotoxic Agent ◽  
Binding Agent ◽  
Binding Properties ◽  
Antimitotic Agent ◽  
X Ray ◽  
Combretastatin A4 ◽  
Tubulin Binding

The benzofuran (4), a ring-fused analogue of the potent antimitotic agent combretastatin A4 (1), has been prepared by a convergent route involving 5-endo-dig iodocyclization of o-hydroxytolan (5) as the key step. Compound (4), which has been characterized crystallographically as well as spectroscopically, is inactive as a tubulin-binding agent.

Antitumor Activity, X-ray Crystal Structure, and DNA Binding Properties of Thiocoraline A, a Natural Bisintercalating Thiodepsipeptide

2007 ◽  
Vol 50 (14) ◽  
pp. 3322-3333 ◽  
Author(s):  
Ana Negri ◽  
Esther Marco ◽  
Verónica García-Hernández ◽  
Alberto Domingo ◽  
Antonio L. Llamas-Saiz ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Dna Binding ◽  
Antitumor Activity ◽  
Binding Properties ◽  
X Ray ◽  
Dna Binding Properties

Ring-Enlarged Dibenzo-Crown-6 Ethers. Cation Binding and X-Ray Crystal Structure of Dibenzo-22-Crown-6

1993 ◽  
Vol 66 (8) ◽  
pp. 2309-2314 ◽  
Author(s):  
Mikio Ouchi ◽  
Takashi Araki ◽  
Tadao Hakushi ◽  
M. Elizabeth Sobhia ◽  
Kizakkekoikkal K. Chacko ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Cation Binding ◽  
X Ray

Redox-responsive molybdenum mononitrosyl complexes incorporating cyclic polyether cation binding sites and x-ray crystal structure of [Mo(NO){HB(3,5-Me2C3N2H)3}{OCH2(CH2OCH2)3CH2O}]

1992 ◽  
Vol 31 (2) ◽  
pp. 263-267 ◽  
Author(s):  
Najat J. AlObaidi ◽  
Sithy S. Salam ◽  
Paul D. Beer ◽  
Christopher D. Bush ◽  
Thomas A. Hamor ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Binding Sites ◽  
Cation Binding ◽  
X Ray ◽  
Redox Responsive

X-Ray structures and binding properties of molecular clips based on diethoxycarbonyl glycoluril

2007 ◽  
Vol 85 (9) ◽  
pp. 586-591 ◽  
Author(s):  
Bao H Zhou ◽  
Li P Cao ◽  
Guo D Yin ◽  
M Gao ◽  
An X Wu
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Good Evidence ◽  
Binding Properties ◽  
X Ray ◽  
H Nmr ◽  
Binding Behavior ◽  
High Affinity ◽  
Molecular Clips

The crystal structures of two molecular clips derived from diethoxycarbonyl glycoluril were reported. Their unique binding behavior towards hydroquinone, which is different from Nolte's clips (high affinity for resorcinol), has been characterized through 1H NMR and IR. Job-plot analyses provide good evidence of a 1:1 stoichiometry for the complexes.Key words: crystal structure, molecular clips, binding properties

Structure and Binding Properties of Four New Oligomeric Cyclophane Esters: 1,4-Xylylene 1,4-Phenylene Diacetates and Dipropionates

1998 ◽  
Vol 51 (5) ◽  
pp. 361 ◽  
Author(s):  
Donato Donati ◽  
Stefano Roelens ◽  
Riccardo Torriti ◽  
Giovanni Valle
Keyword(s):  
Crystal Structure ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts ◽  
Binding Properties ◽  
Binding Ability ◽  
X Ray ◽  
Structure Determinations

The X-ray crystal structure determinations of four new oligomeric cyclophane esters are reported. They are: (3a) monomeric 1,4-xylylene (1,4-phenylene)diacetate, P21/n (No. 14), a 5·959(5), b 15·795(5), c 8·094(5) Å, β 108·060(5)°, V 724·3(8) Å3 , Z 2, R1(2σ) 0·0522, wR2 0·125; (3b) monomeric 1,4-xylylene (1,4-phenylene)dipropionate, P21/c (No. 14), a 5·878(1), b 14·642(2), c 18·909(2) Å, β 96·00(10)°, V 1618·5(4) Å3 , Z 4, R1(2σ) 0·053, wR2 0·165; (3c) dimeric 1,4-xylylene (1,4-phenylene)diacetate, P-1 (No. 2), a 14·633(2), b 17·529(2), c 5·736(1) Å, α 98·30(10), β 90·60(10), γ 95·40(10)°, V 1449·0(4) Å3, Z 2, R1(2σ) 0·057, wR2 0·158; (3d) dimeric 1,4-xylylene (1,4-phenylene)dipropionate, P21/a (No. 14), a 8·145(1), b 11·379(2), c 17·401(2) Å, β 101·40(10)°, V 1580·9(4) Å3, Z 4, R1(2σ) 0·034, wR2 0·095. Monomeric cyclophanes (3a,b) exhibit a well defined cleft, while dimeric (3c,d) adopt a flat conformation devoid of cavities. Binding properties were determined by 1H n.m.r. titrations in CDCl3 at T = 296 K. Complexation experiments with quaternary ammonium salts revealed that host (3c) possesses appreciable binding ability toward N-methylpyridinium (–ΔG° = 5·9 kJ mol-1), tetramethylammonium (–ΔG° = 8·8 kJ mol-1) and acetylcholine (–ΔG° = 7·5 kJ mol-1) cations, despite its lack of a preorganized cavity.

Synthesis, x-ray crystal structures, and cation-binding properties of alkyl calixaryl esters and ketones, a new family of macrocyclic molecular receptors

1989 ◽  
Vol 111 (23) ◽  
pp. 8681-8691 ◽  
Author(s):  
Francoise Arnaud-Neu ◽  
Elizabeth M. Collins ◽  
Mary Deasy ◽  
George Ferguson ◽  
Stephen J. Harris ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Cation Binding ◽  
Binding Properties ◽  
X Ray ◽  
Molecular Receptors ◽  
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