Lone pair–π vs. σ-hole–π interactions in bromine head-containing oxacalix[2]arene[2]triazines

CrystEngComm ◽  
2018 ◽  
Vol 20 (23) ◽  
pp. 3251-3257 ◽  
Author(s):  
Muhammad Moazzam Naseer ◽  
Antonio Bauzá ◽  
Hazem Alnasr ◽  
Klaus Jurkschat ◽  
Antonio Frontera

New bromine head-containing oxacalix[2]arene[2]triazines were synthesized. Owing to the bromine head and complementary V-shaped cavity, the solid state structure showed an intriguing and unique 1D-supramolecular chain-like self-assembly.

CrystEngComm ◽  
2013 ◽  
Vol 15 (16) ◽  
pp. 3097 ◽  
Author(s):  
Sebastian M. Walter ◽  
Mohammed G. Sarwar ◽  
Michael G. Chudzinski ◽  
Eberhardt Herdtweck ◽  
Alan J. Lough ◽  
...  

RSC Advances ◽  
2022 ◽  
Vol 12 (3) ◽  
pp. 1788-1796
Author(s):  
Saba Mehreen ◽  
Aman Ullah ◽  
Humaira Nadeem ◽  
Necmi Dege ◽  
Muhammad Moazzam Naseer

The phenoxy pendant isatins were observed to be highly potent inhibitors of acetylcholinesterase. In addition, the solid-state structure of a phenoxy pendant isatin showed an intriguing 1D-supramolecular self-assembled structure.


CrystEngComm ◽  
2006 ◽  
Author(s):  
José Giner Planas ◽  
Carles Masalles ◽  
Reijo Sillanpää ◽  
Raikko Kivekäs ◽  
Francesc Teixidor ◽  
...  

2009 ◽  
Vol 2009 (11) ◽  
pp. 1687-1690 ◽  
Author(s):  
Manfred T. Reetz ◽  
H. Martin Herzog ◽  
Richard Goddard

Author(s):  
Duyen N. K. Pham ◽  
Andrew R. Chadeayne ◽  
James A. Golen ◽  
David R. Manke

The solid-state structure of the bufotenine derivative bis(5-methoxy-2,N,N-trimethyltryptammonium) (5-MeO-2-Me-DMT) fumarate (systematic name: bis{[2-(5-methoxy-2-methyl-1H-indol-3-yl)ethyl]dimethylazanium} (2E)-but-2-enedioate), 2C14H21N2O+·C4H2O4 2−, the bufotenidine derivative 5-methoxy-2,N,N,N-tetramethyltryptammonium (5-MeO-2-Me-TMT) iodide {systematic name: [2-(5-methoxy-2-methyl-1H-indol-3-yl)ethyl]trimethylazanium iodide}, C15H23N2O+·I−, and the hydrate of the same {systematic name: [2-(5-methoxy-2-methyl-1H-indol-3-yl)ethyl]trimethylazanium iodide monohydrate}, C15H23N2O+·I−·H2O, are reported. The structure of 5-MeO-2-Me-DMT fumarate possesses one tryptammonium cation and a half of a fumarate dianion in the asymmetric unit, linked together by N—H...O hydrogen bonds in infinite two-dimensional networks parallel to the (101) plane. The structure of 5-MeO-2-Me-TMT iodide possesses one tryptammonium cation and one iodide anion in the asymmetric unit. The ions are linked via N—H...I hydrogen bonds, and indoles are coupled in dimers through π–π interactions. The hydrate of 5-MeO-2-Me-TMT iodide possesses one tryptammonium cation, one iodide anion and one water molecule in the asymmetric unit. It shows N—H...I and O—H...I hydrogen bonds that couple the tryptammonium cations into dimers.


2018 ◽  
Vol 33 (2) ◽  
pp. 13
Author(s):  
X. H. Li ◽  
A. F. Jalbout ◽  
W. D. Xiang

A new Cu(II) trimers, [Cu3(dcp)2(H2O)8]. 4DMF, with the ligand 3,5-pyrazoledicarboxylic acid monohydrate (H3dcp) has been prepared by solvent method. Its solid-state structure has been characterized by elemental analysis, thermal analysis (TGA and DSC), and single crystal X-ray diffraction. X-ray crystallographic studies reveal that this complex has extended 1-D,2-D and 3-D supramolecular architectures directed by weak interactions (hydrogen bond and aromatic π-π stacking interaction) leading to a sandwich solid-state structure.


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