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Synthesis and characterization of the new selenometalate anion [Ir(Se{sub 4}){sub 3}]{sup 3{minus}}

Journal Article · · Inorganic Chemistry
; ; ;  [1]
  1. Northewestern Univ., Evanston, IL (United States)
The chemistry of the chalcogenometalate anions [M{sub x}Q{sub y}]{sup z{minus}}, Q = S, Se, Te, continues to expand rapidly. Although the metals M range over groups 5-14, and concentrate in groups 5-14, and concentrate in groups 10-12, it is curious that [Co{sub 3}(Se{sub 4}){sub 6}]{sup 3{minus}} is the only example from group 9. Whereas square-planar or tetrahedral anions of the type [M(Q{sub n}){sub 2}]{sup z{minus}} are common, with n most often 4, octahedral complexes of the type [M(Q{sub n}){sub 3}]{sup z{minus}} appear to be limited to [Pt(S{sub 5}){sub 3}]{sup 2{minus}}, [Pt(Se{sub 4}){sub 3}]{sup 2{minus}}, and [Sn(Se{sub 4}){sub 3}]{sup 2{minus}}. One would expect the [Ir(Se{sub 4}){sub 2}]{sup 3{minus}} anion to exist, as examples of known [M(Se{sub 4}){sub 2}]{sup z{minus}} anions include M = Mn, Ni, Pd, Pt, Zn, Cd, Hg, and Pb. In an attempt to synthesize the square-planar Ir(I) anion [Ir(Se{sub 4}){sub 2}]{sup 3{minus}}, the authors have instead synthesized the octahedral Ir(III) anion [Ir(Se{sub 4}){sub 3}]{sup 3{minus}}, the second example of a chalcogenometalate of group 9.
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-87ER13808
OSTI ID:
476859
Journal Information:
Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 21 Vol. 34; ISSN 0020-1669; ISSN INOCAJ
Country of Publication:
United States
Language:
English