Nanostructured phosphomolybdates

Abstract

Phosphomolybdate nanorods were synthesized using dodecyl pyridinium cations as structure directing agent. Composition and morphology of the nanorods were established by powder X-ray diffraction, energy dispersive X-ray analysis, fourier transform infrared spectroscopy, thermogravimetric analysis, transmission electron microscopy and scanning electron microscopy. Effect of synthetic variables such as pH and nature of templating agent on structure and morphology of the nanorods under ambient condition is discussed.

Crystallization of copper(II) sulfate based minerals and MOF from solution: Chemical insights into the supramolecular interactions

“…12,20 In this paper, we have examined the system CuSO 4 -H 2 O-org ( (Htppnol = N,N,N′-tris-(2-pyridylmethyl)-1,3-diaminopropan-2-ol) is also known. 37 By appropriate choice of organic groups, it is possible to prepare new metal organic solids of the composition CuCO 3 (org).…”

“…23 By proposing a structure for the critical nucleus, we were able to generalize the architectures of copper-based hydroxide and chloride minerals as well as copper organic solids built from molecular building blocks to account for different lattice with the same composition, variation in metal ligand stoichiometry, degree of hydration and a link to chemical reactivity in the solution phase. 12,20 This paper further explores the applicability of our pattern recognizing scheme to other phase diagrams like CuSO 4 -H 2 O-CuO, CuNO 3 -H 2 O-CuO and CuCO 3 -H 2 O-CuO and derive insights for the crystallization of MOF-based solids from reactions that employ copper salts as reactants. The objective is to uncover the mechanisms underpinning intermolecular interactions in the self assembly of inorganic solids including minerals and identify the pattern of crystal packing to engineer the crystallization of new MOFs.…”

Characterization, non-isothermal decomposition kinetics and photocatalytic water splitting of green chemically synthesized polyoxoanions of molybdenum containing phosphorus as hetero atom

“…Na 2 MoO 4 Á2H 2 O solution was slowly added to CPC in 1 M solution of orthophosphoric acid with mild stirring to avoid leather formation by keeping the mass ratio as CPC/Na 2 MoO 4 Á2H 2 O = 0.33, a yellow green precipitate was formed at pH 2.5, which was adjusted to pH 1.5 by adding H 3 PO 4 . The above mixture was then stirred continuously for 24 h [32,33]. The precipitate is then washed continuously with doubledistilled water and then with absolute alcohol thoroughly to remove the excess of surfactant.…”

Growth of Copper Pyrazole Complex Templated Phosphomolybdates: Supramolecular Interactions Dictate Nucleation of a Crystal

“…4 Phosphomolybdates (PMOs) provide an excellent opportunity to explore these issues as one can tune the architectures from simple cluster based solids to nanostructured materials by a suitable choice of organic amine(s). [5][6][7][8][9][10][11][12] A careful analysis of the PMOs synthesized from solution routes suggested the following structural features: (i) Extended PMOs having -Mo-O-P-O-Mo-O-connectivity are invariably obtained under hydrothermal conditions in acidic medium. 13 [14][15][16][17][18][19][20] In contrast, long chain amines like dodecylpyridinium chloride favor nanostructural features.…”

“…13 [14][15][16][17][18][19][20] In contrast, long chain amines like dodecylpyridinium chloride favor nanostructural features. 12 In our earlier work, we have rationalized the structural features of PMOs crystallized in the presence of several organic * To whom correspondence should be addressed. Ramanan and Whittingham.…”