Structure of Microporous QUI-MnGS-1 and in Situ Studies of Its Formation Using Time-Resolved Synchrotron X-ray Powder Diffraction
1998; American Chemical Society; Volume: 10; Issue: 5 Linguagem: Inglês
10.1021/cm980026d
ISSN1520-5002
AutoresChristopher L. Cahill, Younghee Ko, Jonathan C. Hanson, Kemin Tan, John B. Parise,
Tópico(s)Inorganic Fluorides and Related Compounds
ResumoThe structure of QUI-MnGS-1 has been determined from single-crystal X-ray diffraction on a ∼0.03 × 0.03 × 0.02 mm sample using synchrotron radiation. This material [(C7H13N)Mn0.25Ge1.75S4·H2O] crystallizes in space group I4̄2d with unit cell a = 11.581(1) and c = 18.741(3) Å. The extended framework of this structure consists of corner-linked [Ge4S10]4- clusters, the centers of which occupy nodes of a distorted diamond lattice. The 6-rings defined by this lattice form channels that contain the water and organic components of this compound. In situ synchrotron X-ray diffraction studies of its synthesis indicate that an Mn-free precursor phase forms prior to transformation to QUI-MnGS-1. In situ calcination experiments demonstrate that this material is thermally stable to approximately 360 °C.
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