Polar assembly of 2,6-diethynylpyridine through C(sp(2))-H center dot center dot center dot N, C(sp)-H center dot center dot center dot pi and pi-pi stacking interactions: Crystal structure and nonlinear optical properties

Authors
Ohkita, M Suzuki, T Nakatani, K Tsuji, T
Citation
M. Ohkita et al., Polar assembly of 2,6-diethynylpyridine through C(sp(2))-H center dot center dot center dot N, C(sp)-H center dot center dot center dot pi and pi-pi stacking interactions: Crystal structure and nonlinear optical properties, CHEM LETT, (10), 2001, pp. 988-989
Citations number
17
Categorie Soggetti
Chemistry
Journal title
CHEMISTRY LETTERS
ISSN journal
03667022 → ACNP
Issue
10
Year of publication
2001
Pages
988 - 989
Database
ISI
SICI code
0366-7022(20011005):10<988:PAO2TC>2.0.ZU;2-#
Abstract
The crystallization of 2,6-diethynylpyridine 1 leads to C(sp(2))-H . . .N h ydrogen bonded head-to-tail tapes which are held together by C(sp)-H . . . pi hydrogen bridges to form 2D polar sheets; further assembly through pi-pi stacking interaction results in 3D polar crystals which show intense powde r SHG response, 5-fold stronger than crystalline urea.