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Behaviour of Dimolyhdenum Tetraacetate in Aqueous Solutions of Hydrogen Halides. Synthesis and Crystal Structures of (pyH)2[Mo2(02CCH3)4Br2] and two Modifications of (pyH)2[Mo2(02CCH3 )4I2] (py =pyridine)

Ljubo Golič ; University Edvard Kardelj, Department of Chemistry, Murnikova 6. P.O.B. 537, 61001 Ljubljana, Yugoslavia
Ivan Leban ; University Edvard Kardelj, Department of Chemistry, Murnikova 6. P.O.B. 537, 61001 Ljubljana, Yugoslavia
Primož Šegedin ; University Edvard Kardelj, Department of Chemistry, Murnikova 6. P.O.B. 537, 61001 Ljubljana, Yugoslavia

Puni tekst: engleski, pdf (14 MB) str. 565-576 preuzimanja: 114* citiraj
APA 6th Edition
Golič, Lj., Leban, I. i Šegedin, P. (1984). Behaviour of Dimolyhdenum Tetraacetate in Aqueous Solutions of Hydrogen Halides. Synthesis and Crystal Structures of (pyH)2[Mo2(02CCH3)4Br2] and two Modifications of (pyH)2[Mo2(02CCH3 )4I2] (py =pyridine). Croatica Chemica Acta, 57 (4), 565-576. Preuzeto s https://hrcak.srce.hr/194125
MLA 8th Edition
Golič, Ljubo, et al. "Behaviour of Dimolyhdenum Tetraacetate in Aqueous Solutions of Hydrogen Halides. Synthesis and Crystal Structures of (pyH)2[Mo2(02CCH3)4Br2] and two Modifications of (pyH)2[Mo2(02CCH3 )4I2] (py =pyridine)." Croatica Chemica Acta, vol. 57, br. 4, 1984, str. 565-576. https://hrcak.srce.hr/194125. Citirano 04.04.2020.
Chicago 17th Edition
Golič, Ljubo, Ivan Leban i Primož Šegedin. "Behaviour of Dimolyhdenum Tetraacetate in Aqueous Solutions of Hydrogen Halides. Synthesis and Crystal Structures of (pyH)2[Mo2(02CCH3)4Br2] and two Modifications of (pyH)2[Mo2(02CCH3 )4I2] (py =pyridine)." Croatica Chemica Acta 57, br. 4 (1984): 565-576. https://hrcak.srce.hr/194125
Harvard
Golič, Lj., Leban, I., i Šegedin, P. (1984). 'Behaviour of Dimolyhdenum Tetraacetate in Aqueous Solutions of Hydrogen Halides. Synthesis and Crystal Structures of (pyH)2[Mo2(02CCH3)4Br2] and two Modifications of (pyH)2[Mo2(02CCH3 )4I2] (py =pyridine)', Croatica Chemica Acta, 57(4), str. 565-576. Preuzeto s: https://hrcak.srce.hr/194125 (Datum pristupa: 04.04.2020.)
Vancouver
Golič Lj, Leban I, Šegedin P. Behaviour of Dimolyhdenum Tetraacetate in Aqueous Solutions of Hydrogen Halides. Synthesis and Crystal Structures of (pyH)2[Mo2(02CCH3)4Br2] and two Modifications of (pyH)2[Mo2(02CCH3 )4I2] (py =pyridine). Croatica Chemica Acta [Internet]. 1984 [pristupljeno 04.04.2020.];57(4):565-576. Dostupno na: https://hrcak.srce.hr/194125
IEEE
Lj. Golič, I. Leban i P. Šegedin, "Behaviour of Dimolyhdenum Tetraacetate in Aqueous Solutions of Hydrogen Halides. Synthesis and Crystal Structures of (pyH)2[Mo2(02CCH3)4Br2] and two Modifications of (pyH)2[Mo2(02CCH3 )4I2] (py =pyridine)", Croatica Chemica Acta, vol.57, br. 4, str. 565-576, 1984. [Online]. Dostupno na: https://hrcak.srce.hr/194125. [Citirano: 04.04.2020.]

Sažetak
The axial diadducts (pyH)2[Mo2(02CCHa)4X2], (py =pyridine,
X = Br, I) were isolated from solutions of dimolybdenum tetra-
• acetate in HX 1 : 1 after addition of pyridinium halide. (pyH)2
[Mo2(02CCHa)4Br2] (A) crystallizes in the space group I4/m with
a= 0.9746(2) nm, c = 1.3948(2) nm, V = 1.32484 nma and Z = 2.
Two modifications of the iodide analog were isolated. Triclinic
modification (B) crystallizes in the space group Pl with a= 1.0016(1)
nm, b = 1.0092(2) nm, c = 1.6325(2) nm, a = 74.75(1)0
, fJ = 71.38(2) 0 , r = 61.12(2)0
, V = 1.35747 nm3 mid Z = 2; tetragonal modification
(C) in the space group I4/mcm with a = 1.3086(1) nm, c = 1.4712(1)
nm, V = 2.51933 nm3 and Z = 4. The Mo - X (X = Br, I) distances,
found in anions [Mo2(02CCH3)4X2]2-, 287.9(3) pm in A, 326.2(1) pm
and 329.9(1) pm in B, and 320.4(1) pm in C are quite long, indicating
only weak axial coordination. Accordingly, the Mo - Mo distances
210.2(1) pm in A, 210.3(1) pm in B, and 210.2(1) pm in C are only
slightly longer than the Mo - Mo distance of 209.3(1) pm found in
Mo2(02CCHa)4.

Hrčak ID: 194125

URI
https://hrcak.srce.hr/194125

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