Reactivity of 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole, structures and magnetic properties of polynuclear and polymeric Mn(II), Cu(II) and Cd(II) complexes

Dalton Transactions : an International Journal of Inorganic Chemistry
Zhao-Sha MengMing-Liang Tong

Abstract

Five new complexes were obtained from solution or hydrothermal reactions of M(OAc)(2) (M = Mn, Cu and Cd) or CuCl(2) with 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole (abpt) and NaN(3) or 1,3,5-benzenetricarboxylic acid (btcH(3)) in different molar ratios. Structural analysis reveals that Cd(abpt) units in [Cd(abpt)(mu(1,1)-N(3))(2)](n) (1) are bridged by double mu(1,1) end-on (EO) azides into 1D zigzag coordination chains. Similar structural motifs, i.e. the chelation of abpt to the metal center and the double bridges of EO azides, are found in [Mn(4)(abpt)(4)(mu(1,1)-N(3))(8)(H(2)O)(2)] (2). The terminal aqua molecules and the monodentate N(3)(-) groups lead to the formation of a tetranuclear complex rather than a polymeric compound. The abpt underwent deamination in the presence of copper ions during the process of coordination and became 3,5-bis(pyridin-2-yl)-1,2,4-triazolate (bpt-H) in 3-5. [Cu(4)(bpt-H)(4)(N(3))(4)].4.5H(2)O (3) is a neutral tetranuclear grid-like complex, in which the azides act as monodentate ligands. A similar [Cu(4)(bpt-H)(4)](4+) grid-like unit was found in [Cu(4)(bpt-H)(4)(mu-btcH)Cl(2)].2H(2)O (4) and a pair of symmetry-related copper atoms are bridged by the mu-btcH(2)(-) coligand in a butterfly-s...Continue Reading

References

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Citations

Dec 24, 2013·Inorganic Chemistry·Zheng YanMing-Liang Tong
May 17, 2012·Acta Crystallographica. Section E, Structure Reports Online·Lin-Lin CongZhi-Liang Liu
Nov 6, 2012·Acta Crystallographica. Section E, Structure Reports Online·Mi FengZhi-Liang Liu
Oct 10, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Franz A MautnerRamon Vicente
May 28, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Qi MaTianwei Wang
Nov 12, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Sheng HuMing-Liang Tong
May 19, 2012·Chemical Communications : Chem Comm·Nicholas G WhiteSally Brooker
Apr 24, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Yongbing LouMasaaki Ohba
Feb 16, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Muhammad Nadeem AkhtarMing-Liang Tong
Jan 22, 2011·Chemistry, an Asian Journal·Shi-Qiang BaiT S Andy Hor
Jun 2, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Ke LiuPeng Cheng
Mar 30, 2012·Chemical Communications : Chem Comm·Wei-Quan LinMing-Liang Tong

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