Syntheses, and Crystal Structures of YIII Containing Di‐Metal Substituted 1,5 Isomers of Heterometallic Tungstophosphate Nanoclusters: [Y{PM2W10O38(H2O)2}2]11– (M=CoII and ZnII)

Two new YIII containing sandwich‐type heterometallic tungstophosphates: [Y{PM2W10O38(H2O)2}2]11– (M = CoII (1) and ZnII (2)) have been synthesized under mild reaction conditions. Both the molecular complexes 1 a and 2 a were synthesized by reacting Y(NO3)3⋅6H2O, M(NO3)2⋅6H2O (M = CoII and ZnII) with Wells‐Dawson type divacant K14[P2W19O69(H2O)]⋅24H2O precursor. The potassium salts of single crystalline material were collected and further used for characterization with different analytical techniques including single crystal X‐ray diffraction (SC‐XRD), Fourier transform infrared (FT‐IR) spectroscopy, inductively coupled plasma atomic emission spectroscopy (ICP‐AES), 31P, 183W and 89Y nuclear magnetic resonance (NMR) spectroscopy, high‐resolution electro‐spray ionization mass spectrometry (HR‐ESI‐MS) as well as thermogravimetric analysis. Single crystal X‐ray diffraction analysis shows that both polyanions crystallize in the orthorhombic crystal system with space group Iba2. Each polyanion consists of (1,5) isomer of di‐metal substituted α‐Keggin type tungstophosphates, which sandwiched a YIII ion. We have reported two new purely inorganic YIII containing di‐metal substituted sandwich‐type tungstophosphate nanoclusters [Y{PM2W10O38(H2O)2}2]11– (M=CoII (1) and ZnII (2)) followed by one pot reaction procedure under mild reaction conditions. Both compounds were well characterized with different analytical techniques. The polyanion 1 and 2 consist of two units of (1,5) isomers of di‐metal substituted hetero Keggin [PM2W10O38(H2O)2]7– anion, sandwiched by yttrium ion. [ABSTRACT FROM AUTHOR]