Preparation and characterisation of some new Mo/O/XR (X = P or As) heteropoly blue complexes
Abstract
A new series of molybdenum organophosphonates with a Mo∶P ratio of 1∶1 have been isolated. The proposed formulation for these compounds is (MoV2MoVI4O12)(O3XR)4[O2(OH)XR]2(EtOH)x [when X = P, R = C6H5, C6H5CH2, CH3 or C2H5; when X = As, R = C6H5; x
= 5 (for R = C6H5 or CH2C6H5) or 4 (for R = CH3 or C2H5)]. These compounds are intensely blue in colour, as expected for compounds of the heteropoly blue category.