The crystal chemistry of amide‐functionalized ethylenedithiotetrathiafulvalenes: EDT‐TTF‐CONRR′ (R, R′ = H, Me)
作者:Karine Heuzé、Marc Fourmigué、Patrick Batail
DOI:10.1039/a902852h
日期:——
The preparation of ethylenedithiotetrathiafulvalenes (EDT-TTF) directly functionalized on the TTF core with a primary, secondary or tertiary amide or an hydrazide functional group is described. The X-ray crystal structures of EDT-TTF-CO
2
H, EDT-TTF-CONH
2
, EDT-TTF-CONHMe and EDT-TTF-CONMe
2
are reported. The solid state architectures adopted by those functionalized molecules appear to be a compromise between the hydrogen bond requirements of the OH, NH
2
, CH and CO groups, which act as hydrogen bond donor and acceptor, respectively, and the S···S van der Waals interactions of the EDT-TTF moiety. The activation of the hydrogen atom of the TTF core, ortho to the amidic group, enhances its involvement in short CâH···O bonds, giving rise to a characteristic chelating R
2
1
(7) motif as observed in the secondary amide, EDT-TTF-CONHMe.
本文描述了在TTF核心上直接官能化的乙烯基二硫代四硫富瓦烯(EDT-TTF)的制备,该官能团具有伯、仲或叔酰胺或酰肼官能团。本文报道了EDT-TTF-CO2H、EDT-TTF-CONH2、EDT-TTF-CONHMe和EDT-TTF-CONMe2的X射线晶体结构。这些官能化分子采用的固态结构似乎是氢键要求之间的折衷,氢键分别由OH、NH2、CH和CO基团提供和接受,而EDT-TTF部分的S·S·S范德华相互作用。TTF核心氢原子的活化,邻位于酰胺基,增强了其参与短C-H·O键的能力,从而产生在仲酰胺EDT-TTF-CONHMe中观察到的特征螯合R2R1(7)结构。