SYNTHESIS AND CHARACTERIZATION OF CIS-TRANS-M(I)[MOCL(4)PY(2)], (M(I)=PYH(-STRUCTURE OF CIS-RB[MOCL(4)PY(2)]CENTER-DOT-H2O(), RB+, CS+, N(CH3)(4)(+), NH2(CH3)(2)(+), PPH(4)(+) AND ASPH(4)(+), PY=PYRIDINE) AND THE CRYSTAL)
Jv. Brencic et al., SYNTHESIS AND CHARACTERIZATION OF CIS-TRANS-M(I)[MOCL(4)PY(2)], (M(I)=PYH(-STRUCTURE OF CIS-RB[MOCL(4)PY(2)]CENTER-DOT-H2O(), RB+, CS+, N(CH3)(4)(+), NH2(CH3)(2)(+), PPH(4)(+) AND ASPH(4)(+), PY=PYRIDINE) AND THE CRYSTAL), Polyhedron, 13(23), 1994, pp. 3171-3176
Cis-(pyH) [MoCl(4)py2] was prepared from (pyH)(3)[MoCl6] and pyridine
in acetonitrile at room temperature. Several cis- and trans-M(I)[MoCl(
4)py(2)] complexes were pre pared from cis- and trans-(pyH)[MoCl(4)py(
2)]. Cis-M(I)[MoCl(4)py(2)] isomerizes in solution above room temperat
ure to trans-M(I)[MoCl(4)py(2)]. Both isomers are oxidized by bromine
to trans-MoCl(4)py(2). IR spectra can, in a qualitative way, distingui
sh between cis and trans isomers. The crystal-structure of cis-Rb[MoCl
(4)py(2)].H2O was determined in order to obtain definite evidence for
the existence of cis isomers.