نتایج جستجو برای: 8 8 stacking interactions

تعداد نتایج: 1032170  

Journal: :journal of physical & theoretical chemistry 2015
pouya karimi

stability of the π-π stacking interactions in the ben||substituted-coronene and hfben||substituted-coronene complexes was studied using the computational quantum chemistry methods (where ben and hfben are benzene and hexaflourobenzene, || denotes π-π stacking interaction, substituted-coronene is coronene molecule which substituted with four x groups, and x= nh2, ch3, oh, h, f, cf3, cn and no). ...

Journal: :Acta Crystallographica Section E: Crystallographic Communications 2023

The molecular and crystal structure of the title compound, (C 8 H 11 N 4 O 2 ) [PtCl 6 ], synthesized from hexachloroplatinic acid caffeine in methanol, was studied by single-crystal X-ray diffraction. caffeinium cations form a double layer via hydrogen bonds π-stacking interactions. Hirshfeld surface analysis showed that largest contribution to packing is made H...H (31.2%), H...Cl/Cl...H (22....

Journal: :Materials advances 2021

A new class of solution-processable small molecule organic semiconductors that are capable functioning at low operating voltages (?6 V) have been developed and their structure–activity correlation has studied using crystallographic analyses.

Journal: :Journal of Materials Chemistry C 2022

The L4 molecular chirality can be amplified to a supramolecular scale by coassembling with SDS. Further incorporation of the CB[8] leads inversion via change from lamellar structure L4/SDS rectangular stacking in L4/SDS/CB[8].

Journal: :Dalton transactions 2013
Zhong-Wei Gao Xing Feng Lan Mu Xin-Long Ni Li-Li Liang Sai-Feng Xue Zhu Tao Xi Zeng Bodgan E Chapman Philip W Kuchel Leonard F Lindoy Gang Wei

Similar to the larger members of the cucurbituril family, such as cucurbit[8]uril (Q[8]), the smallest member, cucurbit[5]uril (Q[5]), can also induce room-temperature phosphorescence (RTP) of α-naphthol (1) and β-naphthol (2). The relationship between the RTP intensity of 1 and 2 and the concentration of Q[5] or Q[8] suggests that the mechanism underlying the Q[5] complex-induced RTP is differ...

Stability of the π-π stacking interactions in the Ben||substituted-coronene and HFBen||substituted-coronene complexes was studied using the computational quantum chemistry methods (where Ben and HFBen are benzene and hexaflourobenzene, || denotes π-π stacking interaction, substituted-coronene is coronene molecule which substituted with four X groups, and X= NH2, CH3, OH, H, F, CF3, CN and NO). ...

Journal: :Acta crystallographica. Section C, Crystal structure communications 2003
Christopher Glidewell John N Low Manuel Melguizo Antonio Quesada

In 2-amino-4,6-dimethoxy-5-nitropyrimidine, C(6)H(8)N(4)O(4), the molecules are linked by one N-H...N and one N-H...O hydrogen bond to form sheets built from alternating R(2)(2)(8) and R(6)(6)(32) rings. In isomeric 4-amino-2,6-dimethoxy-5-nitropyrimidine, C(6)H(8)N(4)O(4), which crystallizes with Z' = 2 in P-1, the two independent molecules are linked into a dimer by two independent N-H...N hy...

Journal: :journal of physical and theoretical chemistry 0
pouya karimi department of chemistry, faculty of science, university of zabol, p.o. box 98613-35856, zabol, iran

stability of the ;-; stacking interactions in the substituted-coronene||cyclooctatetraene complexes wasstudied using the computational quantum chemistry methods (where || denotes ;–; stackinginteraction, and substituted-coronene is coronene which substituted with four similar x groups; x =oh, sh, h, f, cn, and no). there are meaningful correlations between changes of geometricalparameters and t...

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