Studies of mixed-valence linear-chain complexes crystallized at elevated pressures. Crystal structures of (Pt(en) sub 2 )(Pt(en) sub x X sub 2 )(ClO sub 4 ) sub 4 (X = Br, I)

Journal Article · Wed Mar 07 00:00:00 EST 1990 · Inorganic Chemistry; (USA)

DOI:https://doi.org/10.1021/ic00330a016· OSTI ID:6945464

Weinrach, J B; Ekberg, S A; Conradson, S D; Swanson, B I ^[1]; Hochheimer, H D ^[2]

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1. Los Alamos National Lab., NM (USA)
2. Colorado State Univ., Fort Collins (USA)

The structures of the complexes (Pt(en){sub 2})(Pt(en){sub 2}Br{sub 2})(ClO{sub 4}){sub 4} (1) and (Pt(en){sub 2})(Pt(en){sub 2}I{sub 2})(ClO{sub 4}){sub 4} (2) grown at elevated pressures (7 kbar) have been determined. Both the bromide and iodide are monoclinic and the crystal structure is reported. The structure of the bromide complex has a more symmetrical packing arrangement of the chains with respect to the structure grown under ambient-pressure conditions. The degree of trapped-valence character and the disorder in the position of the bridging bromine ligand are similar to those features of the ambient-pressure structure. The iodide complex has a very similar spatial arrangement compared with its ambient-pressure structure; however, the ethylenediamine ligands appear to pack in a more conventional staggered arrangement. 19 refs., 4 figs., 4 tabs.

• OSTI ID: 6945464
• Journal Information: Inorganic Chemistry; (USA), Vol. 29:5; ISSN 0020-1669
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
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PHYSICAL AND ANALYTICAL CHEMISTRY
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CRYSTAL STRUCTURE
ORGANOMETALLIC COMPOUNDS
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ELECTRONIC STRUCTURE
EXPERIMENTAL DATA
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INFORMATION
NUMERICAL DATA
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400201* - Chemical & Physicochemical Properties