Structural Variation In β-Octamolybdate Polyoxoanion Based Crystals Across Lanthanide Series Isolated from a Water/DMSO Solution.

The crystallization of lanthanide-containing β-octamolybdate (β-{MoO}) based solids from a binary 1 : 1 (water/DMSO) solution under ambient conditions is reported. A uniform synthetic protocol yielded three structurally related series of general composition {Ln(solvent)}[NaMoO] ⋅ yHO, with the whole lanthanide series (except for radioactive Pm). The three series are (i) {Ln(DMSO)}[NaMoO] ⋅ 0.

Multicomponent Solids of Niflumic and Mefenamic Acids Based on Acid-Pyridine Synthon.

The present study discusses comparative structural features of fourteen multicomponent solids of two non-steroidal anti-inflammatory drugs, Niflumic and Mefenamic acids, with amine and pyridine-based coformers. All the solids were structurally characterized through PXRD, SCXRD, DSC, and the monophasic nature of some of the solids was established through Rietveld refinement. The solid forms include salt, cocrystal, hydrate, and solvate.

Photoluminescence Properties of Two Closely Related Isostructural Series Based on Anderson-Evans Cluster Coordinated With Lanthanides [Ln(HO){X(OH)MoO}]•yHO, X = Al, Cr.

The paper describes synthesis and structural characterization of the whole series of two closely related lanthanide coordinated chromium or aluminum hexamolybdates (Anderson-Evans cluster) including twelve new members hitherto unreported: [Ln(HO){X(OH)MoO}]·4HO and [Ln(HO){X(OH)MoO}Ln(HO)]{X(OH)MoO}·16HO where X = Al or Cr and Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y. Crystal structures of all the solids were established by powder and single crystal X-ray diffraction techniques. The two series are dictated by a different aggregation of the same set of molecular species: Lighter lanthanides favor coordination interaction between lanthanide ions and molybdate cluster forming 1D chains (Series I) while the heavier lanthanides result in the stacking of a cation, a pair of lanthanide hydrates coordinating to the cluster, and an anion, the discrete cluster is further stabilized through a large number of water molecules (Series II).

Microbial mineralization of struvite: a promising process to overcome phosphate sequestering crisis.

Due to extensive exploitation of non-renewable phosphate minerals, their natural reserves will exhaust very soon. This necessitates looking for alternatives and an efficient methodology through which indispensable phosphorus can be harvested back. The current study was undertaken to explore the potential of a metallophilic bacterium Enterobacter sp.