N.m.r. spectra of some potentially bidentate thiosemicarbazones, NR3H·CS·NH·N:CR2R1(L: R1,R2= H, Me, Ph, or R1R2= C6H11; R3= H or Ph), and their complexes [ZnCl2L] or [ZnCl2L2] have been measured. The results are compared with semiempirical CNDO/2 total-energy calculations. Only one conformer, containing an intramolecular hydrogen bond, is present in solution. All the zinc(II) complexes are tetrahedral
NR 3 H·CS·NH·N:CR 2 R 1(L:R 1,R 2 = H,Me,Ph或R 1 R 2 = C 6 H 11 ; R 3)= H或Ph),并测定了它们的配合物[ZnCl 2 L]或[ZnCl 2 L 2 ]。将结果与半经验CNDO / 2总能量计算进行比较。溶液中仅存在一个包含分子内氢键的构象异构体。全
锌(二))络合物是四面体。讨论了其中
配体为双齿的络合物的可能形成。