Crystal structure of heptaguanidinium nonahydrogen bis[a-hexamolybdoplatinate(IV)] heptahydrate

Hea Chung Joo; Ki Min Park; Uk Lee; S. Parkin

doi:10.1107/S2056989015002601

Crystal structure of heptaguanidinium nonahydrogen bis[a-hexamolybdoplatinate(IV)] heptahydrate

Hea Chung Joo, Ki Min Park, Uk Lee, S. Parkin

Chemistry

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The title compound, (CH₆N₃)₇H₉[PtMo₆O₂₄]₂·₇H₂O, containing the well-known Anderson-type heteropolyoxomolybdate, was obtained by recrystallization of its powdered guanidinium salt. The protonated O atoms in the polyanion were confirmed by electron-density maps, interpolyanion hydrogen bonds and bond-valance sums (BVS). The {[H_4.5PtMo₆O₂₄]₂} polyanion is the same as that already characterized in K7[H_4.5PtMo₆O₂₄]2₁₁H₂O [space group P1; Lee & Joo (2010). Acta Cryst. E66, i8-i9]. The heteropolyanions form inversion-generated dimers, {[H₄₅PtMo₆O₂₄]2}^7-, held together by each of the four μ₃-O - H⋯μ₁-O, two μ₂-O - H⋯μ₂-O hydrogen bonds and one centrosymmetric μ3-O - H - μ3-O hydrogen bond. The H atom of the centrosymmetric hydrogen bond is located on an inversion centre. One guanidinium ion and one water molecule are equally disordered about a twofold rotation axis.

Original language	English
Pages (from-to)	268-271
Number of pages	4
Journal	Acta Crystallographica Section E: Structure Reports Online
Volume	71
Issue number	3
DOIs	https://doi.org/10.1107/S2056989015002601
State	Published - Mar 1 2015

Keywords

Anderson-type heteropolyoxomolybdate
Centro-symmetric hydrogen bond
Crystal structure
Platinum-containing heteropolyoxomolybdate
Strong hydrogen bond

ASJC Scopus subject areas

Chemistry (all)
Materials Science (all)
Condensed Matter Physics

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title = "Crystal structure of heptaguanidinium nonahydrogen bis[a-hexamolybdoplatinate(IV)] heptahydrate",

abstract = "The title compound, (CH6N3)7H9[PtMo6O24]2·7H2O, containing the well-known Anderson-type heteropolyoxomolybdate, was obtained by recrystallization of its powdered guanidinium salt. The protonated O atoms in the polyanion were confirmed by electron-density maps, interpolyanion hydrogen bonds and bond-valance sums (BVS). The {[H4.5PtMo6O24]2} polyanion is the same as that already characterized in K7[H4.5PtMo6O24]211H2O [space group P1; Lee & Joo (2010). Acta Cryst. E66, i8-i9]. The heteropolyanions form inversion-generated dimers, {[H45PtMo6O24]2}7-, held together by each of the four μ3-O - H⋯μ1-O, two μ2-O - H⋯μ2-O hydrogen bonds and one centrosymmetric μ3-O - H - μ3-O hydrogen bond. The H atom of the centrosymmetric hydrogen bond is located on an inversion centre. One guanidinium ion and one water molecule are equally disordered about a twofold rotation axis.",

keywords = "Anderson-type heteropolyoxomolybdate, Centro-symmetric hydrogen bond, Crystal structure, Platinum-containing heteropolyoxomolybdate, Strong hydrogen bond",

author = "Joo, {Hea Chung} and Park, {Ki Min} and Uk Lee and S. Parkin",

year = "2015",

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doi = "10.1107/S2056989015002601",

language = "English",

volume = "71",

pages = "268--271",

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T1 - Crystal structure of heptaguanidinium nonahydrogen bis[a-hexamolybdoplatinate(IV)] heptahydrate

AU - Joo, Hea Chung

AU - Park, Ki Min

AU - Lee, Uk

AU - Parkin, S.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - The title compound, (CH6N3)7H9[PtMo6O24]2·7H2O, containing the well-known Anderson-type heteropolyoxomolybdate, was obtained by recrystallization of its powdered guanidinium salt. The protonated O atoms in the polyanion were confirmed by electron-density maps, interpolyanion hydrogen bonds and bond-valance sums (BVS). The {[H4.5PtMo6O24]2} polyanion is the same as that already characterized in K7[H4.5PtMo6O24]211H2O [space group P1; Lee & Joo (2010). Acta Cryst. E66, i8-i9]. The heteropolyanions form inversion-generated dimers, {[H45PtMo6O24]2}7-, held together by each of the four μ3-O - H⋯μ1-O, two μ2-O - H⋯μ2-O hydrogen bonds and one centrosymmetric μ3-O - H - μ3-O hydrogen bond. The H atom of the centrosymmetric hydrogen bond is located on an inversion centre. One guanidinium ion and one water molecule are equally disordered about a twofold rotation axis.

AB - The title compound, (CH6N3)7H9[PtMo6O24]2·7H2O, containing the well-known Anderson-type heteropolyoxomolybdate, was obtained by recrystallization of its powdered guanidinium salt. The protonated O atoms in the polyanion were confirmed by electron-density maps, interpolyanion hydrogen bonds and bond-valance sums (BVS). The {[H4.5PtMo6O24]2} polyanion is the same as that already characterized in K7[H4.5PtMo6O24]211H2O [space group P1; Lee & Joo (2010). Acta Cryst. E66, i8-i9]. The heteropolyanions form inversion-generated dimers, {[H45PtMo6O24]2}7-, held together by each of the four μ3-O - H⋯μ1-O, two μ2-O - H⋯μ2-O hydrogen bonds and one centrosymmetric μ3-O - H - μ3-O hydrogen bond. The H atom of the centrosymmetric hydrogen bond is located on an inversion centre. One guanidinium ion and one water molecule are equally disordered about a twofold rotation axis.

KW - Anderson-type heteropolyoxomolybdate

KW - Centro-symmetric hydrogen bond

KW - Crystal structure

KW - Platinum-containing heteropolyoxomolybdate

KW - Strong hydrogen bond

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JO - Acta Crystallographica Section E: Structure Reports Online

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Crystal structure of heptaguanidinium nonahydrogen bis[a-hexamolybdoplatinate(IV)] heptahydrate

Abstract

Keywords

ASJC Scopus subject areas

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