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Syntheses and characterization of phosphonates and diphosphonates of molybdenum, A4[(MoO3)5(O3PR)2xH2O, A2[Mo2O5(O3PR)2] and A2[Mo2O5(O3P-R-PO3)] (A = K, Rb, Cs, Tl, NH4)

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Abstract

Twenty new molybdenum phosphonates and diphosphonates have been synthesized and structurally characterized by single crystal and powder X-ray diffraction, CHN analyses, spectroscopic and thermal studies. Four of them are molecular phenyl- and benzyl-phosphonates containing discrete [(MoO3)5(O3PR)2]4− (R = Ph or CH2Ph) cyclic anions. The sixteen non-molecular compounds are layered isostructural phenylphosphonates, A2[Mo2O5(O3PPh)2] (A = NH4, Tl, Rb, Cs) and K1.5(H3O)0.5[Mo2O5(O3PPh)2] and the corresponding diphosphonate compounds with pillared anionic layers, A2[Mo2O5(O3P(CH2)3PO3)], A2[Mo2O5(O3P(CH2)4PO3)] and A2[Mo2O5(O3P(C6H4)PO3)]. The A+ ions reside in the interlayer region as well as in the cavities within the anionic layers.

Graphical abstract: Syntheses and characterization of phosphonates and diphosphonates of molybdenum, A4[(MoO3)5(O3PR)2]·xH2O, A2[Mo2O5(O3PR)2] and A2[Mo2O5(O3P-R-PO3)] (A = K, Rb, Cs, Tl, NH4)

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Publication details

The article was received on 14 Aug 2017, accepted on 05 Nov 2017 and first published on 10 Nov 2017


Article type: Paper
DOI: 10.1039/C7DT03012F
Citation: Dalton Trans., 2017, Advance Article
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    Syntheses and characterization of phosphonates and diphosphonates of molybdenum, A4[(MoO3)5(O3PR)2xH2O, A2[Mo2O5(O3PR)2] and A2[Mo2O5(O3P-R-PO3)] (A = K, Rb, Cs, Tl, NH4)

    D. Elias Jesu Packiam and K. Vidyasagar, Dalton Trans., 2017, Advance Article , DOI: 10.1039/C7DT03012F

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