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一缺位杂多阴离子XW_(11)O_(39)^((12-n)-)(X=P^(5+),Si^(4+),B^(3+),Ga^(3+))含硫有机膦衍生物的合成及结构表征 被引量:4
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作者 孙振刚 岳淑美 +1 位作者 刘群 刘景福 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2000年第1期24-26,共3页
With Bu4NBr as phase-transfer agent, the monovacant polyoxometalates α-Xn+W11O(12-n)-39(X=P, Si, B, Ga) reacted in acetonitrile with electrophilic C6H5P(S)Cl2 to yield hybrid organic-inorganic species [C6H5P(S... With Bu4NBr as phase-transfer agent, the monovacant polyoxometalates α-Xn+W11O(12-n)-39(X=P, Si, B, Ga) reacted in acetonitrile with electrophilic C6H5P(S)Cl2 to yield hybrid organic-inorganic species [C6H5P(S)]2XW11O(8-n)-39 in satisfactory yield, which have been characterized by elemental analyses, IR and 31P, 183W NMR. The formulation of all tetrabutylammonium salts of [C6H5P(S)]2·XW11(8-n)-O39 are in agreement with the results of elemental analyses, the hybrid anion consists of an α-Xn+W11O(12-n)-39 framework on which are grafted two C6H5P(S) groups through P\O\W bridges. The spectroscopic data show that the [PhP(S)]2XW11O(8-n)-39 compounds possess true Cs symmetry in acetonitrile and remain unsaturated. 展开更多
关键词 杂多阴离子 有机膦 合成 杂多化合物
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Synthesis and Spectroscopic Characterization of Organothiophosphoryl Polyoxotungstates α-[C_6H_(11)P(S)]_2X^(n+)W_(11)O_(39)^((8-n)-)(X^(n+)P^(5+), Si^(4+), Ge^(4+), Ga^(3+) 被引量:1
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作者 SUNZhen-gang YOUWan-sheng +2 位作者 ZHUZai-ming GUYuan-peng LIUJing-fu 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2004年第5期517-520,共4页
Organothiophosphoryl polyoxotungstate derivatives α-C_6H_(11)P(S)]_2X^(n+)W_(11)O_(39)^((8-n)-)(X=P, Si, Ge, Ga) were obtained by the reactions of the monovacant α-_2X^(n+)W_(11)O_(39)^((8-n)-)(X=P, Si, Ge, Ga) were... Organothiophosphoryl polyoxotungstate derivatives α-C_6H_(11)P(S)]_2X^(n+)W_(11)O_(39)^((8-n)-)(X=P, Si, Ge, Ga) were obtained by the reactions of the monovacant α-_2X^(n+)W_(11)O_(39)^((8-n)-)(X=P, Si, Ge, Ga) were obtained by the reactions of the monovacant α-[X^(n+)W_(11)O_(39)]^((12-n)-)(X=P, Si, Ge, Ga) anions with electrophilic C_6H_(11)P(S)Cl_2 in acetonitrile. These new organic-inorganic hybrid anions were characterized by elemental analyses, IR, (()^(31)P) and (()^(183)W) NMR spectrometries. The six-line ()^(183)W NMR spectrum indicates that [C_6H_(11)P(S)]_2X^(n+)W_(11)O_(39)^((8-n)-)(X=P, Si, Ge, Ga) anions possess true C_s symmetry in acetonitrile. According to the spectroscopic observation and the chemical analyses, it is known that each of the hybrid anions consists of an α-[XW_(11)O_(39)] framework on which two equivalent C_6H_(11)P(S) groups are grafted through P-O-W bridges. 展开更多
关键词 POLYOXOTUNGSTATE Organophosphorus SYNTHESIS ^()^(31)P NMR ^()^(183)w NMR
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二空缺Dawson型钨磷酸盐K_(10)Na_2H_2P_2W_(16)O_(60)·18H_2O的合成、结构和溶液的稳定性 被引量:4
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作者 吴新国 蒋安仁 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 1992年第4期429-432,共4页
用刚酸化的Na_2WO_4溶液(H^+/WO_4^(2-)=1.14,摩尔比)与Na_2HPO_4混合,酸化至pH6.5~6.9,再加入KCl固体,可制得K_(10)Na_2H_2P_2W_(16)O_(60)·18H_2O晶体。经元素分析、VO^(2+)光度滴定、^(31)PNMR、^(183)W NMR和紫外光谱等研究,... 用刚酸化的Na_2WO_4溶液(H^+/WO_4^(2-)=1.14,摩尔比)与Na_2HPO_4混合,酸化至pH6.5~6.9,再加入KCl固体,可制得K_(10)Na_2H_2P_2W_(16)O_(60)·18H_2O晶体。经元素分析、VO^(2+)光度滴定、^(31)PNMR、^(183)W NMR和紫外光谱等研究,确定为二空缺Dawson型结构;其溶液经60℃加热后,立即分解成H_7PW_8O_(33)^(6-);将K^+换成Na^+时,主要分解产物为PW_(11)O_(39)^(7-)。 展开更多
关键词 二空缺 DAwSON结构 钨磷酸盐 NMR
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钨磷杂多酸盐的合成、表征及催化活性 被引量:2
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作者 单秋杰 《合成化学》 CAS CSCD 2005年第2期148-151,共4页
合成了4个钨磷杂多酸盐——K10H2[P2W15Ti3O62]·2H2O,K12[P2W15(TiO2)3O59]·8H2O,K12[P2W15Zr3O62]·6H2O和K12[P2W15(ZrO2)3O59]·5H2O,用183WNMR,UV,IR,ICP和极谱-循环伏安等测试方法对其性质、结构进行了研究。结... 合成了4个钨磷杂多酸盐——K10H2[P2W15Ti3O62]·2H2O,K12[P2W15(TiO2)3O59]·8H2O,K12[P2W15Zr3O62]·6H2O和K12[P2W15(ZrO2)3O59]·5H2O,用183WNMR,UV,IR,ICP和极谱-循环伏安等测试方法对其性质、结构进行了研究。结果表明它们都是具有Dawson结构的杂多配合物,对顺丁烯二酸的H2O2环氧化反应具有显著的催化活性。 展开更多
关键词 钨磷酸盐 杂多酸 DAwSON结构 ^^183w NMR 催化活性
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