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Nickel(II) and cobalt(II) nitrate and chloride networks with 2-aminopyrimidine

机译:带有2-氨基嘧啶的硝酸镍和氯化钴(II)和氯化钴网络

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摘要

The coordination chemistry of 2-aminopyrimidine (PymNH(2)) with nickel(II) and cobalt(II) nitrate and chloride is reported, including seven new X-ray crystal structures. Two [Ni(NO3)(2)(PymNH(2))(2)(OH2)] isomers were found (A: C2/c, a=13.3006(5), b=7.9727(3), c=28.5453(11), beta=101.758(2), V=2963.48(19), Z=8 and B center dot 1/2 acetone: P2(1)/c, a=7.66060(10), b=10.6792(2), c=20.6790(3), beta=100.2970(10), 1664.48(5), Z=4). In both cases one nitrate is monodentate and the other is chelating and the PymNH(2) ligands coordinate through ring nitrogen atoms. Hydrogen bonding results in double sheet structure for isomer A, and a three dimensional channeled network for isomer B. [Co(NO3)(2)(PymNH(2))(2)(OH2)] (C2/c, a=13.3507(2), b=7.99520(10), c=28.6734(3), beta=102.3540(10), V=2989.77(7), Z=8) is isostructural to Ni isomer A. [CoCl2(PymNH(2))] (Cmcm, a=3.6139(2), b=14.3170(7), c=12.9986(7), V=672.55(6), Z=4) is a sheet coordination network, consisting of corner-sharing chains of Co-2(mu-Cl)(2) bridged by PymNH(2) through ring nitrogen atoms; [CoCl2(PymNH(2))(2)] (C2/c, a=11.2774(6), b=6.5947(4), c=16.5687(9), beta=92.269(3), V=1231.27(12), Z=4) is a tetrahedral molecule knit into a ribbon structures through pairs of hydrogen bonds. Isostructural trans-[NiCl2(PymNH(2))(4)] (C2/c, a=7.67760(10), b=18.7224(3), c=15.0418(2), beta=99.6740(10), V=2131.41(5), Z=4) and trans-[CoCl2(PymNH(2))(4)] (C2/c, a=7.69120(10), b=18.5957(2), c=15.1091(2), beta=99.5280(10), V=2131.14(5), Z=4) are simple octahedral molecules, with hydrogen-bonding producing sheet structures.
机译:据报道2-氨基嘧啶(PymNH(2))与镍(II)和硝酸钴(II)和氯化物的配位化学,包括七个新的X射线晶体结构。发现了两个[Ni(NO3)(2)(PymNH(2))(2)(OH2)]异构体(A:C2 / c,a = 13.3006(5),b = 7.9727(3),c = 28.5453( 11),beta = 101.758(2),V = 2963.48(19),Z = 8和B中心点1/2丙酮:P2(1)/c,a=7.66060(10),b = 10.6792(2), c = 20.6790(3),beta = 100.2970(10),1664.48(5),Z = 4)。在这两种情况下,一种硝酸盐是单齿的,另一种是螯合的,PymNH(2)配体通过环氮原子配位。氢键形成异构体A的双层结构和异构体B的三维通道网络。[Co(NO3)(2)(PymNH(2))(2)(OH2)](C2 / c,a = 13.3507 (2),b = 7.99520(10),c = 28.6734(3),β= 102.3540(10),V = 2989.77(7),Z = 8)对Ni异构体A是同构的。[CoCl2(PymNH(2) )](Cmcm,a = 3.6139(2),b = 14.3170(7),c = 12.9986(7),V = 672.55(6),Z = 4)是一个工作表协调网络,由以下的角共享链组成通过环氮原子由PymNH(2)桥接的Co-2(mu-Cl)(2); [CoCl2(PymNH(2))(2)](C2 / c,a = 11.2774(6),b = 6.5947(4),c = 16.5687(9),beta = 92.269(3),V = 1231.27(12 ),Z = 4)是通过成对的氢键编织成带状结构的四面体分子。同构反式-[NiCl2(PymNH(2))(4)](C2 / c,a = 7.67760(10),b = 18.7224(3),c = 15.0418(2),beta = 99.6740(10),V = 2131.41(5),Z = 4)和反式-[CoCl2(PymNH(2))(4)](C2 / c,a = 7.69120(10),b = 18.5957(2),c = 15.1091(2), beta = 99.5280(10),V = 2131.14(5),Z = 4)是简单的八面体分子,具有产生氢键的片状结构。

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