3-(2-Pyrazyl)-[1,2,4]triazolo[4,3-a]pyridine – A versatile ligand: Ambidenticity and coordination isomerism in mono- and polynuclear 3d transition metal complexes
作者:Julia Klingele、Dominic Kaase、Timo Huxel、Carla Gotzmann、Yanhua Lan
DOI:10.1016/j.poly.2012.08.043
日期:2013.3
[CuII(L2)2](ClO4)2 (3), the 1D chain compounds [FeII2(L2)2(H2O)6(MeSO3)2](MeSO3)2 (6), [CoII(L2)2Cl2] (7a), [FeII(L2)2Cl2] (9) and [FeII(L2)2(NCS)2]·MeCN (13·MeCN) as well as the hydrogen-bonded and π–π-stacked mononuclear complexes [FeII(L2-κNpz4)2(NCS)2(MeOH)2] (10a), [FeII(L2-κNtp1)2(NCS)2(MeOH)2] (10b), [FeII(L2-κNpz4)2(NCSe)2(MeOH)2] (11), [FeII(L2-κNpz4)2(NCBH3)2(MeOH)2] (12a) and [FeII(L2-κNtp1)2(NCBH3)2(MeOH)2]
研究了新的配体3-(2-吡唑基)-[1,2,4]三唑并[4,3- a ]吡啶(L 2)的配位行为。在此研究过程中,通过单晶X射线衍射对12个配合物进行了结构表征,即离散的单核配合物[Fe II(L 2)3 ](ClO 4)2 ·1.25MeCN·1.25H 2 O(1 · 1.25MeCN·1.25H 2 O)和[Fe II(L 2)3 ](BF 4)2 ·2MeCN·0.5H 2 O(2·2MeCN·0.5H 2 O),二维聚合络合物[Cu II(L 2)2 ](ClO 4)2(3),一维链状化合物[Fe II 2(L 2)2(H 2 O)6(MeSO 3)2 ] [MeSO 3)2(6),[Co II(L 2)2 Cl 2 ](7a),[Fe II(L 2)2氯2 ](9)和[铁II(大号2)2(NCS)2 ]·的MeCN(13 ·MeCN中),以及在氢键和π-π堆叠的单核络合物的[Fe