
TY  - JOUR
A1  - Soulivong, Daravong 
A1  - Matt, Dominique 
A1  - Harrowfield, Jack 
A1  - Toupet, Loïc 
T1  - A Long-Chain Phosphine Designed as a Metallomesogen Generator&#8212;Synthesis and Coordination Properties
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2004
VL  - 57
IS  - 2
SP  - 157
EP  - 160
KW  - liquid crystals &#8212; metallomesogens &#8212; molecular rods &#8212; P substituents &#8212; Pt
UR  - https://doi.org/10.1071/CH03264 
N2  - The long-chain phosphine Me2PC&#8801;C(p-C6H4CHNR C8) [L; RC8 = p-C6H4OC(O)(p-C6H4OC8H17)] has been prepared in two steps starting from 4-ethynylbenzaldehyde (1): (a) condensation of 1 with H2NRC8 (2) afforded the corresponding imine 3 (yield 86%) which displays liquid-crystalline behaviour; (b) deprotonation of 3 with LiNPri2 and subsequent reaction with Me2PCl gave a mixture of the phosphine&#8211;alkyne L and the precursor 3 (L : 3 = 60 : 40). Reaction of this mixture with [PtCl2(PhCN)2] produced cis-[PtCl2L2] (4) and provided an efficient means of separating the phosphine from 3. The crystal structure of imine 3 has been determined by single-crystal X-ray diffraction and analysis of this structure provides a basis for understanding both the mesogenic character of 3 and its absence in the complex 4. 
ER  -

