The substitution reaction of quinin e by the 18types of heteropoly comple xes,for these formed compounds are Keggin structure and the molecular f ormulas arXM 11 O 39 M’ (OH) 2 6- (X =Si,Ge,P;M=Mo or W;M’ =Co,Ni,Cu)...The substitution reaction of quinin e by the 18types of heteropoly comple xes,for these formed compounds are Keggin structure and the molecular f ormulas arXM 11 O 39 M’ (OH) 2 6- (X =Si,Ge,P;M=Mo or W;M’ =Co,Ni,Cu),was studied by the means of phase tra nsfer.The results of characterization that were accomplished by UV and ESR indicated that the quinine does f orm the chemical bond with the hetrop oly ligands.Spectral experiment demonstrated that the structure held the same when the heteropoly comple x contained Cu 2+ was reacted with qui-nine,while the heteropoly complex c ontained Ni 2+ resulted in the changing of the structure.Such a result of op-tical rotatory opticity testified t hat quinine reacting with heteropoly acid contained transitional metals could form a kind of new complexes which were opti cal rotation.展开更多
Reaction of the trivacant heteropolyanions α A PW9O349- with CH3SiCl3 leads to the formation of the organosilyl derivative (TBA)3[α A PW9O34(CH3SiO)3(CH3Si)]. The crystal X ray diffraction analysis shows that the cr...Reaction of the trivacant heteropolyanions α A PW9O349- with CH3SiCl3 leads to the formation of the organosilyl derivative (TBA)3[α A PW9O34(CH3SiO)3(CH3Si)]. The crystal X ray diffraction analysis shows that the crystalbelongs to orthorhombic with space group Pca21, M=3177.09 and the unit cell parameters: a=25.761(5)?,b=14.519(3)?,c=24.396(5)?.V=9124(3)?3,Z=4,Dc=2.225g·cm-3,μ(MoKα)=11.438mm-1,F(000)=5464,R=0.0561,Rw=0.0866. The anion consists of one α A PW9O349- anion linked by three CH3SiO+ groups, whichattached to the fourth CH3Si through three Si O Si bridges.展开更多
LB film of new hybrid Polyquinolin/Trilacunary heteropolytungstoilicate (PQ/SiW9) was prepared and characterized by π-A isotherm, UV-Vis absorption spectroscopy, atomic force microscope(AFM), fluorescence spectroscop...LB film of new hybrid Polyquinolin/Trilacunary heteropolytungstoilicate (PQ/SiW9) was prepared and characterized by π-A isotherm, UV-Vis absorption spectroscopy, atomic force microscope(AFM), fluorescence spectroscopy. The results indicated that they had good film-forming property on the air-water interface. The molecular areas for these monolayers at zero pressure were estimated to be 7.2 nm2·mol-1. The collapse pressure of LB film was 46 mN·m-1. Their I^V curves results showed that the title LB films had good electric conductivity and the conductivity of the LB film increased with monolayers number.展开更多
文摘The substitution reaction of quinin e by the 18types of heteropoly comple xes,for these formed compounds are Keggin structure and the molecular f ormulas arXM 11 O 39 M’ (OH) 2 6- (X =Si,Ge,P;M=Mo or W;M’ =Co,Ni,Cu),was studied by the means of phase tra nsfer.The results of characterization that were accomplished by UV and ESR indicated that the quinine does f orm the chemical bond with the hetrop oly ligands.Spectral experiment demonstrated that the structure held the same when the heteropoly comple x contained Cu 2+ was reacted with qui-nine,while the heteropoly complex c ontained Ni 2+ resulted in the changing of the structure.Such a result of op-tical rotatory opticity testified t hat quinine reacting with heteropoly acid contained transitional metals could form a kind of new complexes which were opti cal rotation.
文摘Reaction of the trivacant heteropolyanions α A PW9O349- with CH3SiCl3 leads to the formation of the organosilyl derivative (TBA)3[α A PW9O34(CH3SiO)3(CH3Si)]. The crystal X ray diffraction analysis shows that the crystalbelongs to orthorhombic with space group Pca21, M=3177.09 and the unit cell parameters: a=25.761(5)?,b=14.519(3)?,c=24.396(5)?.V=9124(3)?3,Z=4,Dc=2.225g·cm-3,μ(MoKα)=11.438mm-1,F(000)=5464,R=0.0561,Rw=0.0866. The anion consists of one α A PW9O349- anion linked by three CH3SiO+ groups, whichattached to the fourth CH3Si through three Si O Si bridges.
文摘LB film of new hybrid Polyquinolin/Trilacunary heteropolytungstoilicate (PQ/SiW9) was prepared and characterized by π-A isotherm, UV-Vis absorption spectroscopy, atomic force microscope(AFM), fluorescence spectroscopy. The results indicated that they had good film-forming property on the air-water interface. The molecular areas for these monolayers at zero pressure were estimated to be 7.2 nm2·mol-1. The collapse pressure of LB film was 46 mN·m-1. Their I^V curves results showed that the title LB films had good electric conductivity and the conductivity of the LB film increased with monolayers number.
