Raman, resonance Raman and infrared spectra at ca. 80 K of the complexes [M(dta)2]n (M = Ni, Pd or Pt; dta = CH3CS2; n = 1 or 2) and Ni2(dta)4I are reported and assigned. Excitation profile studies have confirmed that the electronic bands at ⩾ 18 600 cm−1 involve metal(d)ligand(π) charge transfer. The assignment of the lower energy electronic bands as transitions to Frenkel exciton levels is discussed
拉曼,共振拉曼和红外光谱在大约。80 k中的配合物[M(DTA)的2 ] Ñ(M =的Ni,Pd或Pt; DTA = CH 3 CS 2 ; ñ = 1或2)和Ni 2(DTA)4 I中报道和分配。激励曲线研究已证实,⩾18 600 cm -1处的电子带涉及
金属(d)
配体(π)电荷转移。根据拉曼光谱结果讨论了低能电子带向弗伦克尔激子能级跃迁的分配。