(S-methyl-3-((5-X-2-hydroxyphenyl)methyl)dithiocarbazate, X = H, L = L1; X = NO2, L = L2) react with [VIVO(acac)2] in acetonitrile solution under refluxing condition in the presence of an organic base or ammonium ion (added in moderate excess) as co-ligand to generate cis-dioxidovanadium(V) complexes viz. (NH4)[VVO2L2(H2O)] 1, (gunH)[VVO2L1] 2, (gunH)[VVO2L2] 3 and (cytH)[VVO2L1](cyt) 4 (gun = guanidine and
摘要基于三齿二
硫代
氨基甲酸酯的席夫碱
配体H2L(S-甲基-3-((5-X-2-羟苯基)甲基)二
硫代
氨基甲酸酯,X = H,L = L1; X =
NO2,L =
L2)与[在
乙腈溶液中,在有机碱或
铵离子(适度过量添加)作为共
配体的存在下,在回流条件下于
乙腈溶液中产生[VIVO(acac)2]。(NH4)[VVO2
L2(
H2O)] 1,(gunH)[VVO2L1] 2,(gunH)[VVO2
L2] 3和(cytH)[VVO2L1](cyt)4(gun =
胍和cyt =
胞嘧啶)。通过X射线晶体学研究证实,这些化合物具有固态的低聚物结构,涉及阴离子[LVO2]-种类和BH +抗衡离子通过库仑相互作用和强氢键结合在一起的交替阵列。这些化合物在
甲醇溶液中稳定。在较高供体数的非质子溶剂中,即 CH3CN,
DMF或
DMSO,这些化合物在暴露于可见光时会发生光诱导的转变。通过EPR,NIR区域的电子光谱和动态1H