高等学校化学学报2011，Vol.32Issue(3)：673-677,5.
含混合配体多酸超分子化合物的水热合成、晶体结构及催化活性
Hydrothermal Synthesis and Characterization of POM-based Supramolecular Complexes with Mixed Ligands
摘要
Abstract
Four POM-based supramolecular complexes with mixed 4,4'-bipy and 2,2'-bipy/phen, [ Cu(4,4'-bipy) (2,2'-bipy)2 ]2 [ SiW12 04o ] · 4H20 ( 1 ), [ Ag4 (4,4'-bipy)3 ( 2,2'- bipy)2 ] [ SiW12 04o ] · 2H20 (2), [ Cu(4,4'-bipy) (phen) ]2 [ H30]2 [ SiW12O40 ] · 8H20(3) and [ Cu(4,4'-bipy-Cl) (phen) ]2 [ H30 ][ PW12 O4o ] · H2 O (4) ( bipy = bipyridine, phen = phenanthroline) were synthesized under hydrothermal condition and characterized by IR, TG, elemental analysis and single-crystal X-ray diffraction. Compound 1 crystallized in the monoclinic system, space group P21/n, with a = 1.2858 (4) nm, b = 2. 0890 ( 7 ) nm, c =1.5580(5) nm, β=102.306(4)°, V=4.089(2) nm3, Z=2, R1 = 0.0451, wR2 = 0.0934. Compound2 crystallized in the monoclinic system, space group P21/n, with a = 1. 2766(4) nm, b =2. 1258(6) nm, c =1.4491(4) nm, β=104.774(4)°, V=3.803(2) nm3, Z=2, R1 =0.0429, wR2 =0.0730. Compound 3 crystallized in the monoclinic system, space group C2/m, with a = 1. 9850 (8) nm, b = 1. 4072 (6) nm, c = 1.2108(5) nm, β=110.629(6)°, V=3. 165(2) nm3, Z=2, R1 = 0.0885, wR2 = 0. 1647. Compound 4 crystallized in the monoclinic system, space group C2/m, with a = 2. 0376 (7) nm, b = 1. 4031 (5) mn, c =1.3784(5) nm, β=93.502(6)°, V=3.933(2) nm3, Z=2, R1 = 0.0561, wR2 = O. 1491. The catalytic activities of these compounds were tested in the epoxidation of styrene and compounds 3 and 4 exhibited high conversion of styrene and selectivity to epoxide.关键词
水热合成/混合配体/多酸超分子化合物/晶体结构/催化活性Key words
Hydrothermal synthesis/ Mixed ligand/ POM-based supramolecular complex/ Crystal structure/Catalytic activity (Ed.: I, K)分类
化学化工引用本文复制引用
杜丞博,王春玲,冯素姣,任远航,孔祖萍,岳斌,贺鹤勇..含混合配体多酸超分子化合物的水热合成、晶体结构及催化活性[J].高等学校化学学报,2011,32(3):673-677,5.基金项目
国家自然科学基金(批准号:20633030,20721063,20873027)、国家"九七三"计划项目(批准号:2009CB623506)、国家"八六三"计划项目(批准号:2009AA033701)、上海市重点学科建设项目(批准号:B108)和上海市优秀学科带头人计划(批准号:10XD1400300)资助. （批准号:20633030,20721063,20873027）
