Journal article

On thallium(I)-oxochloromolybdates:: Synthesis and crystal structures of Tl[MoOCl4(NCCH3)], Tl[Mo2O2Cl7], and Tl2[Mo4O4Cl14] and the structure of Tl2[MoCl6]


Authors list: Beck, J; Hengstmann, M

Publication year: 1998

Pages: 1943-1950

Journal: Journal of Inorganic and General Chemistry

Volume number: 624

Issue number: 12

ISSN: 0044-2313

Publisher: Wiley


Abstract: 
Black crystals of Tl-2[MoCl6] are formed in the reaction of TlCl with MoOCl3 in a sealed evacuated glass ampoule at 350 degrees C. The crystal structure analysis shows that Tl-2[MoCl6] (cubic, , a=986.35(7)pm) adopts the K-2[PtCl6] structure with a Mo-Cl bond length of 236.6 pm. TI[MoOCl4(NCCH3)] was obtained by the reaction of TlCl with MoOCl3 in acetonitrile in form of yellow, moisture sensitive crystals. The structure (orthorhombic, Cmcm, a = 746.0(1), b = 1463.8(3), c = 857.3(2) pm) is built of Tl+ cations and octahedral [MoOCl4(NCCH3)](-) anions in which the acetonitrile ligand is bound in trans position to the oxygen. The reaction of TlCl and MoOCl3 in dichloromethane yields Tl[Mo2O2Cl7] and Tl-2[Mo4O4Cl14] as green moisture sensitive crystals. The structure of TI[Mo2O2Cl7] (orthorhombic, Pmmn, a = 694.3(1), b = 951.9(2), c = 904.7(1) pm) consists of Tl+ cations and dinuclear [Mo2O2Cl7](-) anions, with two equidistant chlorine bridges of 248.2 and one longer chlorine bridge of 265.7 pm. The oxygen atoms are located in the trans positions of the longer chloro bridge. The structure of Tl-2[Mo4O4Cl14] (triclinic, , a=692.8(1), b=919.6(1), c=998.9(1)pm, alpha=104.94(1)degrees, beta=90.31(1)degrees, gamma=108.14(1)degrees) is build of Tl+ cations and [Mo4O4Cl14](2-) anions which form tetramers of distorted octahedral, edgesharing (MoOCl5) units with chlorine atoms in the bridging positions. The oxygen atoms are located in the trans positions of the longest chlorine bridges.



Citation Styles

Harvard Citation style: Beck, J. and Hengstmann, M. (1998) On thallium(I)-oxochloromolybdates:: Synthesis and crystal structures of Tl[MoOCl4(NCCH3)], Tl[Mo2O2Cl7], and Tl2[Mo4O4Cl14] and the structure of Tl2[MoCl6], Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry, 624(12), pp. 1943-1950. https://doi.org/10.1002/(SICI)1521-3749(1998120)624:12<1943::AID-ZAAC1943>3.0.CO;2-6

APA Citation style: Beck, J., & Hengstmann, M. (1998). On thallium(I)-oxochloromolybdates:: Synthesis and crystal structures of Tl[MoOCl4(NCCH3)], Tl[Mo2O2Cl7], and Tl2[Mo4O4Cl14] and the structure of Tl2[MoCl6]. Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry. 624(12), 1943-1950. https://doi.org/10.1002/(SICI)1521-3749(1998120)624:12<1943::AID-ZAAC1943>3.0.CO;2-6


Keywords

acetonitrilotetrachloro-oxomolybdate(1-); hexachloromolybdate(2-); tetranuclear oxochloromolybdate(V)(2-); thallium(1+); TRICHLORIDE; tri-mu-chloro-bis(dichlorooxomolybdate)(1-)

Last updated on 2025-02-04 at 06:44