Citation: YANG Huan, LIU Pei-Ye, SONG Hai-Bin, TANG Liang-Fu. Synthesis and Property of Tungsten Carbonyl Derivatives Based on 1H-(Pyrazol-1-ylmethyl)-1,2,3-benzotriazoles[J]. Chinese Journal of Structural Chemistry, ;2015, 34(11): 1742-1748. doi: 10.14102/j.cnki.0254-5861.2011-0747 shu

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

1.
Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China

Corresponding author: TANG Liang-Fu,
Received Date: 2 April 2015
Available Online: 24 June 2015
Fund Project: This work was supported by the National Natural Science Foundation of China (No. 21372124) (No. 21372124)NFFTBS (No. J1103306) (No. J1103306)

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)°, V=1.6343(6) nm³, Z=4, D_c=2.126 g/cm³, F(000)=992, μ=7.107 mm^-1, S=0.990, the final R=0.0301 and wR=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)°, V=0.9563(1) nm³, Z=2, D_c=1.914 g/cm³, F(000)=528, μ=6.078 mm^-1, S=1.042, the final R=0.0253 and wR=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.
- N ligand,
- pyrazole,
- benzotriazole,
- tungsten
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