Hb. Bai et Bs. Ault, MATRIX-ISOLATION AND THIN-FILM SPECTROSCOPIC STUDY OF THE INTERACTIONOF DIMETHYLZINC WITH GROUP-V AND GROUP-VI ALKYLS, Journal of physical chemistry, 98(40), 1994, pp. 10001-10007
Matrix isolation and cryogenic thin film approaches have been employed
for the synthesis, isolation, and characterization of 1:1 and 1:2 com
plexes of (CH3)(2)Zn with group V and VI alkyls and acetone. A high yi
eld of complex was formed for each system, and the ratio of 1:1 to 1:2
adduct could be altered by changing concentration and deposition cond
itions. All of the complexes were characterized by a shifting of sensi
tive vibrational modes of the (CH3)(2)Zn subunit, along with perturbat
ion to certain vibrational modes of the base. The ZnC2 anztisymmetric
stretching mode was the most sensitive to complexation, and the magnit
ude of the shift of this mode was taken as a qualitative indication of
the strength of interaction in the complex. The relative shifts also
correlated well with the photon affinities of the several bases in the
study.