Self-Assembly, Structures and Properties of Manganese (II) and Nickel (II) Complexes with 1H-benzotriazole-based Ligands

• Main Authors: Yu-Yau Chen, 陳鈺堯
• Other Authors: Tien-Wen Tseng
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/6m8x56

碩士 === 國立臺北科技大學 === 化學工程研究所 === 99 === In the first part of this thesis, self-assembly of a nickel cluster [Ni9(BTA)12(NO)6] (1) was achieved by the reaction of Ni(NO3)2．6H2O and HBTA ligand. Single-crystal X-ray diffraction analysis shows that complex 1 crystallizes in a space group Pī. Two types of coordination environment of the nickel metal centers are observed: (i) the inner three nickel atoms adopt octahedral geometry by the coordination of six nitrogen atoms from six BTA ligands; (ii) the outer six nickel metal centers adopt tetrahedral geometry, which are coordinated by three nitrogen atoms from three BTA ligands and one nitrogen atom from one NO moiety. It is noteworthy that the structure consisting of six nitrosyl groups is rare up to date. In the second part, one manganese(II) complexes, [Mn4(BTC)2(THF)4Cl2]n (2) and one nickel(II) compound [KNi2(BTC)Cl2(H2O)2]n (3), were synthesized under hydrothermal conditions. During the synthesis of complex 2, the uncoordinated H2btca ligand may plays a role in promoting the formation of 3D framework of complex 2. Complex 3 crystallizes in a space group Pbcn. This compound changed its color in the air. This might be due to the transformation of the structure upon the removing of the guest molecules. This is corroborated by the TGA and PXRD studies of compound 3.