Dinuclear cobalt and nickel complexes of a mercaptoacetic acid substituted 1,2,4-triazole ligand: syntheses, structures and urease inhibitory studies
作者:Zi-Yi Fang、Li Zhang、Jian-Ping Ma、Long Zhao、Shi-Ling Wang、Nan-Hua Xie、Yi-Qin Liu、Xiao-Ying Guo、Jie Qin
DOI:10.1107/s2053229619015602
日期:2019.12.1
versatile coordination modes and strong coordination ability, the mercaptoacetic acid substituted 1,2,4‐triazole 2‐[5‐(pyridin‐2‐yl)‐4H‐1,2,4‐triazol‐3‐yl]sulfanyl}acetic acid (H2L) was synthesized and characterized. Treatment of H2L with cobalt and nickel acetate afforded the dinuclear complexes μ‐3‐[(carboxylatomethyl)sulfanyl]‐5‐(pyridin‐2‐yl)‐4H‐1,2,4‐triazol‐4‐ido‐κ2N1,N5:N2,O}bis[aqua(methanol‐κO)cobalt(II)]
由于巯基乙酸具有多种配位方式和较强的配位能力,因此巯基乙酸取代了1,2,4-三唑2-[5-(吡啶-2-基)-4 - H -1,2,4-三唑-3-基]硫烷基}乙酸(ħ 2大号)的合成和表征。用钴和乙酸镍处理H 2 L得到双核络合物μ-3-[[(羧甲基甲基)硫烷基] -5-(吡啶-2-基)-4 H -1,2,4-三唑-4-基-κ 2 ñ 1,ñ 5:ñ 2,ö }双[AQUA(甲醇- κ ø)钴(II)]甲醇二溶剂化物,[CO 2(C 9H 6 N 4 O 2 S)2(CH 3 OH)2(H 2 O)2 ]·2CH 3 OH(1)和μ‐3 ‐ [(羧甲基甲基)硫烷基] ‐5‐(吡啶‐2‐ yl)‐4 H ‐1,2,4-三唑_4‐ido‐κ 2 N 1,N 5:N 2,O }二[重胺基(II)]二水合二甲醇[Ni 2(C 9 H 6 N 4 O 2 S)2(H 2 O)4]·2CH 3 OH·2H