Two new kinds of supramolecular inclusion compound of β cyclodextrin(host)and chloro cyclopentadi enyl tricarbonyl molybdenum(tungsten)(guest) have been prepared and characterized by using the chemical elemental anal...Two new kinds of supramolecular inclusion compound of β cyclodextrin(host)and chloro cyclopentadi enyl tricarbonyl molybdenum(tungsten)(guest) have been prepared and characterized by using the chemical elemental analyses, infrared spectroscopy, nuclear magnetic resonance,powder X ray diffractometry and thin layer chromatography(TLC). The results show that β CD formed one to one compounds with guest and the cyclopentadienyl group of guest may be included into the hydrophobic cavity of β CD. Differential thermal analyses reveal that after formation of the supramolecular inclusion compounds, thermal stability of the host and guest molecules increased.展开更多
C5Me4(benzyl)H reacted with Mo(CO)6 in refluxing xylene to give the new complex(C5Me4benzyl)2Mo2(CO)6.Its molecular structure was characterized by elemental analysis,IR spectra,1H NMR and X-ray diffraction.Crystal dat...C5Me4(benzyl)H reacted with Mo(CO)6 in refluxing xylene to give the new complex(C5Me4benzyl)2Mo2(CO)6.Its molecular structure was characterized by elemental analysis,IR spectra,1H NMR and X-ray diffraction.Crystal data for this compound:Triclinic,space group P1,Mr=782.56,a=0.854 43(17) nm,b=0.991 0(2) nm,c= 1.035 5(2) nm,α=67.25(3)°,β=87.38(3)°,γ=85.99(3)°,V=0.806 4(3) nm3,Z=1,Dc=1.611 g·cm3,μ(Mo Kα)=0.825 mm-1,F(000)=398,R=0.032 9,wR=0.083 6(observed reflections with Ⅰ>2σ(Ⅰ)) and R=0.036 2,wR=0.084 3(all reflections).The X-ray crystal structure of the dimer confirms the structure with terminal CO groups and the Mo-Mo bond distance is 0.326 6 nm.CCDC:693386.展开更多
文摘Two new kinds of supramolecular inclusion compound of β cyclodextrin(host)and chloro cyclopentadi enyl tricarbonyl molybdenum(tungsten)(guest) have been prepared and characterized by using the chemical elemental analyses, infrared spectroscopy, nuclear magnetic resonance,powder X ray diffractometry and thin layer chromatography(TLC). The results show that β CD formed one to one compounds with guest and the cyclopentadienyl group of guest may be included into the hydrophobic cavity of β CD. Differential thermal analyses reveal that after formation of the supramolecular inclusion compounds, thermal stability of the host and guest molecules increased.
文摘C5Me4(benzyl)H reacted with Mo(CO)6 in refluxing xylene to give the new complex(C5Me4benzyl)2Mo2(CO)6.Its molecular structure was characterized by elemental analysis,IR spectra,1H NMR and X-ray diffraction.Crystal data for this compound:Triclinic,space group P1,Mr=782.56,a=0.854 43(17) nm,b=0.991 0(2) nm,c= 1.035 5(2) nm,α=67.25(3)°,β=87.38(3)°,γ=85.99(3)°,V=0.806 4(3) nm3,Z=1,Dc=1.611 g·cm3,μ(Mo Kα)=0.825 mm-1,F(000)=398,R=0.032 9,wR=0.083 6(observed reflections with Ⅰ>2σ(Ⅰ)) and R=0.036 2,wR=0.084 3(all reflections).The X-ray crystal structure of the dimer confirms the structure with terminal CO groups and the Mo-Mo bond distance is 0.326 6 nm.CCDC:693386.
