Synthesis, isolation, and characterization of trisodium tricarbonyliridate (3-), Na3[Ir(CO)3]. Initial studies on its derivative chemistry and structural characterizations of trans-[Ir(CO)3(EPh3)2]-, E = Ge, Sn, and trans-[Co(CO)3(SnPh3)2]-

J. M. Allen; W. W. Brennessel; C. E. Buss; J. E. Ellis; M. E. Minyaev; M. Pink; G. F. Warnock; M. L. Winzenburg; V. G. Young

doi:10.1021/ic0105011

Synthesis, isolation, and characterization of trisodium tricarbonyliridate (3-), Na₃[Ir(CO)₃]. Initial studies on its derivative chemistry and structural characterizations of trans-[Ir(CO)₃(EPh₃)₂]^-, E = Ge, Sn, and trans-[Co(CO)₃(SnPh₃)₂]^-

J. M. Allen, W. W. Brennessel, C. E. Buss, J. E. Ellis, M. E. Minyaev, M. Pink, G. F. Warnock, M. L. Winzenburg, V. G. Young

Chemistry (Twin Cities)

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

31 Scopus citations

Abstract

Reduction of Na[Ir(CO)₄] by sodium metal in (Me₂N)₃PO, followed by treatment with liquid ammonia, provided high yields (ca. 90%) of unsolvated Na₃[Ir(CO)₃], a thermally stable, pyrophoric orange solid. This substance contains iridium in its lowest known formal oxidation state of -3 and has been characterized by IR spectroscopy, elemental analyses, and derivative chemistry, i.e., by its conversion to the triphenylgermyl and triphenylstannyl complexes, trans-[Ir(CO)₃(EPh₃)₂]^-, E = Ge, Sn. Single-crystal X-ray structures of the tetraethylammonium salts of these species, as well as [Co(CO)₃(SnPh₃)₂]^-, confirm the trigonal bipyramidal nature of the anions, originally predicted on the basis of their IR spectra in the carbonyl stretching frequency region. These structural characterizations provide important additional evidence for the presence of metal tricarbonyl units in Na₃[M(CO)₃], M = Co, Ir.

Original language	English (US)
Pages (from-to)	5279-5284
Number of pages	6
Journal	Inorganic chemistry
Volume	40
Issue number	20
DOIs	https://doi.org/10.1021/ic0105011
State	Published - Sep 24 2001

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Allen, J. M., Brennessel, W. W., Buss, C. E., Ellis, J. E., Minyaev, M. E., Pink, M., Warnock, G. F., Winzenburg, M. L., & Young, V. G. (2001). Synthesis, isolation, and characterization of trisodium tricarbonyliridate (3-), Na₃[Ir(CO)₃]. Initial studies on its derivative chemistry and structural characterizations of trans-[Ir(CO)₃(EPh₃)₂]^-, E = Ge, Sn, and trans-[Co(CO)₃(SnPh₃)₂]^-. Inorganic chemistry, 40(20), 5279-5284. https://doi.org/10.1021/ic0105011

Synthesis, isolation, and characterization of trisodium tricarbonyliridate (3-), Na₃[Ir(CO)₃]. Initial studies on its derivative chemistry and structural characterizations of trans-[Ir(CO)₃(EPh₃)₂]^-, E = Ge, Sn, and trans-[Co(CO)₃(SnPh₃)₂]^-. / Allen, J. M.; Brennessel, W. W.; Buss, C. E. et al.
In: Inorganic chemistry, Vol. 40, No. 20, 24.09.2001, p. 5279-5284.

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

Allen, JM, Brennessel, WW, Buss, CE, Ellis, JE, Minyaev, ME, Pink, M, Warnock, GF, Winzenburg, ML & Young, VG 2001, 'Synthesis, isolation, and characterization of trisodium tricarbonyliridate (3-), Na₃[Ir(CO)₃]. Initial studies on its derivative chemistry and structural characterizations of trans-[Ir(CO)₃(EPh₃)₂]^-, E = Ge, Sn, and trans-[Co(CO)₃(SnPh₃)₂]^-', Inorganic chemistry, vol. 40, no. 20, pp. 5279-5284. https://doi.org/10.1021/ic0105011

Allen JM, Brennessel WW, Buss CE, Ellis JE, Minyaev ME, Pink M et al. Synthesis, isolation, and characterization of trisodium tricarbonyliridate (3-), Na₃[Ir(CO)₃]. Initial studies on its derivative chemistry and structural characterizations of trans-[Ir(CO)₃(EPh₃)₂]^-, E = Ge, Sn, and trans-[Co(CO)₃(SnPh₃)₂]^-. Inorganic chemistry. 2001 Sep 24;40(20):5279-5284. doi: 10.1021/ic0105011

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abstract = "Reduction of Na[Ir(CO)4] by sodium metal in (Me2N)3PO, followed by treatment with liquid ammonia, provided high yields (ca. 90%) of unsolvated Na3[Ir(CO)3], a thermally stable, pyrophoric orange solid. This substance contains iridium in its lowest known formal oxidation state of -3 and has been characterized by IR spectroscopy, elemental analyses, and derivative chemistry, i.e., by its conversion to the triphenylgermyl and triphenylstannyl complexes, trans-[Ir(CO)3(EPh3)2]-, E = Ge, Sn. Single-crystal X-ray structures of the tetraethylammonium salts of these species, as well as [Co(CO)3(SnPh3)2]-, confirm the trigonal bipyramidal nature of the anions, originally predicted on the basis of their IR spectra in the carbonyl stretching frequency region. These structural characterizations provide important additional evidence for the presence of metal tricarbonyl units in Na3[M(CO)3], M = Co, Ir.",

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