Reaction of Et 4NCl, NaSCH 2COOMe and W(CO) 6 in MeCN affords a new dinuclear tungsten(0) complex Et 4N 2 W 2(CO) 8(SCH 2COOMe) 2 (1). The crystal and molecular structure has been determined by X ray ...
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Reaction of Et 4NCl, NaSCH 2COOMe and W(CO) 6 in MeCN affords a new dinuclear tungsten(0) complex Et 4N 2 W 2(CO) 8(SCH 2COOMe) 2 (1). The crystal and molecular structure has been determined by X ray single crystal diffraction. 1 Crystallized in the triclinic, space group P 1 with a=11.141(7), b=10.267(4), c=10.798(3) ; α=93.96(3), β=96.88(4), γ=114.97(5)°; V=1003 3, Z=1, D c =1.76 g/cm 3, μ =60.1 cm -1 , R =0.042 and R w =0.050 for 2967 independent reflections with I>3.0 σ(I) . 1 contains a WS 2W planar core with nonbonding W…W distance of 3.9611(5) , and its IR, 13 C NMR, and cyclic voltammetry were measured and discussed.
From the seeds of red kidney bean( Phaseolus valgaris L.),two novel protein constituents named PV3 and PV5 have been isolated and purified by extraction with PB buffer,S Sepharose Fast Flow column *** proteins are pro...
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From the seeds of red kidney bean( Phaseolus valgaris L.),two novel protein constituents named PV3 and PV5 have been isolated and purified by extraction with PB buffer,S Sepharose Fast Flow column *** proteins are proved to be homogeneous by SDS PAGE、IEF and HPLC analysis,and presented the typical absorption spectra in ultraviolet *** molecular weights of the two proteins were approximately 65 kD and 61 kD by HPLC analysis,but 34 kD and 31 kD by using SDS PAGE analysis,*** two values were in agreement with the amino acid compositions *** fact that there were no Cys in these proteins indicated that the subunit was the base composition *** isoelectric points of the two proteins were 6.0 and *** hemagglutinating activity of two proteins was *** PV3 and PV5 were crystallized using hanging drop vapor diffusion method.
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