有机膦、胂、(月弟)合钨、钼聚多酸盐的研究 Ⅳ.烷基膦合钼聚多酸盐的制备

STUDIES ON OPGANO-PHOSPHORUS,-ARSENICAND -ANTIMONY POLYTUNGSTATES AND POLYMOLYBDATESIV .PREPARATION OF ALKYL-PHOSPHORUS POLYMOLYBDATES

本文是作者在合成了一系列有机胂、有机(月弟)的钨、钼聚多酸盐后,有关若干有机膦合钼聚多酸“柄状”化合物的合成报导以及一些光学性质的测定。有关有机基团是C_2H_5,n-C_3H_7,n-C_4H_9,n-C_5H_(11)及C_6H_5CH_2。发现pH为3～5时,在不同的投料比例下都只形成一种类型的化合物[(RP)_2Mo_5O_(21)]^(4-),与相应的有机胂衍生物既可形成[(RAs)_2Mo_5O_(21)]^(4-)又可形成[(RAs)_2Mo_6O_(24)]^(4-)有较大的差异。

Following the syntheses of some organo-arsenic (antimony) polytungstates and polymolybdates, several guanidinium salts of alkylphosphorus polymolybdates have now been isolated and characterized. The alkyl groups are C2H5, n-C3H7, n-C4H9, n-C5H11 and C6H5CH2. It is found that only one single type of compounds [(RP)2Mo5O21]4- can be formed by different ratios of molybdenum to phosphorus at pH 3-5. It is suggested that smaller phosphorus atoms may be rather different from the larger arsenic atoms in the formation of [(RAs)2Mo5O21]4- and [(RAs)2Mo6O24]4- types of compounds.