Synthesis and Property of Tungsten Carbonyl Derivatives Based on 1H-(Pyrazol-1-ylmethyl)-1,2,3-benzotriazoles

【摘要】 Three complexes,(PBT)W(CO)5(1),(3,5-Me2PBT)W(CO)5(2) and(3,5-Pri2PBT)W(CO)5(3)(PBT=1H-(pyrazol-1-ylmethyl)-1,2,3-benzotriazole),were synthesized,and two of them were structurally characterized by X-ray crystallography.Complex 1 crystallizes in monoclinic with space group P21/c,a=1.0828(2),b=2.1655(4),c=0.6982(1) nm,β=93.39(3)o,V=1.6343(6) nm3,Z=4,Dc=2.126 g/cm3,F(000)=992,μ=7.107 mm-1,S=0.990,the final R=0.0301 and w R=0.0685.Complex 2 crystallizes in triclinic with space group P1,a=0.95021(8),b=0.98391(6),c=1.1433(1) nm,α=68.792(7),β=77.860(8),γ=75.533(6)o,V=0.9563(1) nm3,Z=2,Dc=1.914 g/cm3,F(000)=528,μ=6.078 mm-1,S=1.042,the final R=0.0253 and w R=0.0549.1H-(Pyrazol-1-ylmethyl)-1,2,3-benzotriazoles acted as monodentate ligands through the 3-position nitrogen of the triazolyl group,and the pyrazolyl nitrogen did not participate in coordinating to the metal centers in these complexes.Their UV and fluorescence properties have been studied.更多还原

【Abstract】 Three complexes,(PBT)W(CO)5(1),(3,5-Me2PBT)W(CO)5(2) and(3,5-Pri2PBT)W(CO)5(3)(PBT=1H-(pyrazol-1-ylmethyl)-1,2,3-benzotriazole),were synthesized,and two of them were structurally characterized by X-ray crystallography.Complex 1 crystallizes in monoclinic with space group P21/c,a=1.0828(2),b=2.1655(4),c=0.6982(1) nm,β=93.39(3)o,V=1.6343(6) nm3,Z=4,Dc=2.126 g/cm3,F(000)=992,μ=7.107 mm-1,S=0.990,the final R=0.0301 and w R=0.0685.Complex 2 crystallizes in triclinic with space group P1,a=0.95021(8),b=0.98391(6),c=1.1433(1) nm,α=68.792(7),β=77.860(8),γ=75.533(6)o,V=0.9563(1) nm3,Z=2,Dc=1.914 g/cm3,F(000)=528,μ=6.078 mm-1,S=1.042,the final R=0.0253 and w R=0.0549.1H-(Pyrazol-1-ylmethyl)-1,2,3-benzotriazoles acted as monodentate ligands through the 3-position nitrogen of the triazolyl group,and the pyrazolyl nitrogen did not participate in coordinating to the metal centers in these complexes.Their UV and fluorescence properties have been studied.更多还原