Configurations of 1,3-bis(aryl)-1,3-diaza-2-thiaallenes in the crystal state

Authors
Bagryanskaya, IY Gatilov, YV Zibarev, AV
Citation
Iy. Bagryanskaya et al., Configurations of 1,3-bis(aryl)-1,3-diaza-2-thiaallenes in the crystal state, MENDELEEV C, (4), 1999, pp. 157-158
Citations number
14
Categorie Soggetti
Chemistry
Journal title
MENDELEEV COMMUNICATIONS
ISSN journal
09599436 → ACNP
Issue
4
Year of publication
1999
Pages
157 - 158
Database
ISI
SICI code
0959-9436(199907):4<157:CO1ITC>2.0.ZU;2-E
Abstract
The sigma,pi-mixing responsible for the Z,Z configuration of the title comp ounds is indifferent to both withdrawing (NO2) and releasing (OMe) pi-elect ron character of ortho-substituents, and the arrangement of aromatic rings in the Z,E configuration orthogonally to the NSN plane is a universal way t o overcome steric hindrances due to bulky (Bu-t, Br) ortho-substituents.