The synthesis is and crystal structure are reported for the sheet-like compourd [CU2(oxpn)Fe(CN )5(NO)]. there oxpn is the dianion of M, M'-bis(3-aminopropyl)oxamide. This compound crustallizes in the orthogonal s...The synthesis is and crystal structure are reported for the sheet-like compourd [CU2(oxpn)Fe(CN )5(NO)]. there oxpn is the dianion of M, M'-bis(3-aminopropyl)oxamide. This compound crustallizes in the orthogonal space group Puma. with a=11 .413(4), b=22.242(5), c=7.736(2) A, and Z=4.The structure was refined to conventionat discrepancy factors R=0.047 and Pw=0.054. The Cu(II ) and Fe(III)centers are bridged by oxpn and cyanide, the formal behaves as a his-terdentate tigand bound to cooper(II)ion to form (II) dimers. whereas the latter bridges Cu(II) and Fe(III) centers in both symmetric and asymetric end- to-end bis-monodentate fashions, spreading out along be plane to form a 20 network. The Structure is made up of CuFe unit with Cu(II) and Fe(III) ions locating in a distorted square-based pyramid and a compressed octahedron, respectively.展开更多
报道了一个草酰胺桥连的四核Cu(Ⅱ)Mn(Ⅱ)配合物[Mn(CuL)3][Mn(H20)6][N(CN)2]2(C104)2·4H2O(L为l，4，8，ll一四氮杂环十四烷-2，3-二酮)(C34H74C12Cu3Mn2N18O24，Mr=1490．51)的合成、晶体结构和磁性。配合物属于单斜晶系，空间...报道了一个草酰胺桥连的四核Cu(Ⅱ)Mn(Ⅱ)配合物[Mn(CuL)3][Mn(H20)6][N(CN)2]2(C104)2·4H2O(L为l，4，8，ll一四氮杂环十四烷-2，3-二酮)(C34H74C12Cu3Mn2N18O24，Mr=1490．51)的合成、晶体结构和磁性。配合物属于单斜晶系，空间群为C2／c，晶胞参数如下：α=22．295(5)，b=12．852(3)，c=20．109(4)°/A，β=90．47(3)^。，V=5762(2)°/A^3，Dc=1．718g／m^3，Z=4，F(000)=3068，μ=1．701mm^-1，R=0．0915，wR=0．1810(based on F^2)。3个中性Cu(Ⅱ)大环配合物通过6个氧原子与Mn(Ⅱ)配位，Mn-O键长范围为2．190(6)～2．208(5)°/A。[Mn(CuL)3]2+通过高氯酸根离子连接起来形成一个二维层。高氯酸根的氧原子与Cu^Ⅱ键长范围为2．902～2．996°/A，为弱相互作用。[Mn(H20)6]^2+，N(CN)2^-和H2O位于层间，并通过氢键连成三维网络结构。磁性研究表明Cu^Ⅱ-Mn^Ⅱ离子间通过草酰胺传递反铁磁相互作用，用基于各向同性的Hamiltonian算符＾/H=2JMnCu＾/SMn(＾/SCul+＾/SCu2+＾/SCu3)进行磁性拟合得到磁耦合常数JCuMn=-17cm^-1。展开更多
文摘The synthesis is and crystal structure are reported for the sheet-like compourd [CU2(oxpn)Fe(CN )5(NO)]. there oxpn is the dianion of M, M'-bis(3-aminopropyl)oxamide. This compound crustallizes in the orthogonal space group Puma. with a=11 .413(4), b=22.242(5), c=7.736(2) A, and Z=4.The structure was refined to conventionat discrepancy factors R=0.047 and Pw=0.054. The Cu(II ) and Fe(III)centers are bridged by oxpn and cyanide, the formal behaves as a his-terdentate tigand bound to cooper(II)ion to form (II) dimers. whereas the latter bridges Cu(II) and Fe(III) centers in both symmetric and asymetric end- to-end bis-monodentate fashions, spreading out along be plane to form a 20 network. The Structure is made up of CuFe unit with Cu(II) and Fe(III) ions locating in a distorted square-based pyramid and a compressed octahedron, respectively.
文摘报道了一个草酰胺桥连的四核Cu(Ⅱ)Mn(Ⅱ)配合物[Mn(CuL)3][Mn(H20)6][N(CN)2]2(C104)2·4H2O(L为l，4，8，ll一四氮杂环十四烷-2，3-二酮)(C34H74C12Cu3Mn2N18O24，Mr=1490．51)的合成、晶体结构和磁性。配合物属于单斜晶系，空间群为C2／c，晶胞参数如下：α=22．295(5)，b=12．852(3)，c=20．109(4)°/A，β=90．47(3)^。，V=5762(2)°/A^3，Dc=1．718g／m^3，Z=4，F(000)=3068，μ=1．701mm^-1，R=0．0915，wR=0．1810(based on F^2)。3个中性Cu(Ⅱ)大环配合物通过6个氧原子与Mn(Ⅱ)配位，Mn-O键长范围为2．190(6)～2．208(5)°/A。[Mn(CuL)3]2+通过高氯酸根离子连接起来形成一个二维层。高氯酸根的氧原子与Cu^Ⅱ键长范围为2．902～2．996°/A，为弱相互作用。[Mn(H20)6]^2+，N(CN)2^-和H2O位于层间，并通过氢键连成三维网络结构。磁性研究表明Cu^Ⅱ-Mn^Ⅱ离子间通过草酰胺传递反铁磁相互作用，用基于各向同性的Hamiltonian算符＾/H=2JMnCu＾/SMn(＾/SCul+＾/SCu2+＾/SCu3)进行磁性拟合得到磁耦合常数JCuMn=-17cm^-1。
