MIXED-LIGAND COMPLEXES OF TECHNETIUM .9. OXIDATIVE LIGAND-EXCHANGE REACTIONS ON TETRAPHENYLARSONIUM-BIS(DITHIOOXALATO)NITRIDOTECHNETATE(V), (PH4AS)2[TCN(DTO)2] - X-RAY CRYSTAL-STRUCTURE OF A FURTHER MODIFICATION OF (PH4AS)2[TCN(DTO)2]

被引：16

作者：

ABRAM, U

MUNZE, R

KIRMSE, R

KOHLER, K

DIETZSCH, W

GOLIC, L

机构：

[1] KARL MARX UNIV,DEPT CHEM,O-7010 LEIPZIG,GERMANY

[2] EDVARD KARDELJ UNIV,DEPT CHEM,YU-61001 LJUBLJANA,YUGOSLAVIA

来源：

INORGANICA CHIMICA ACTA | 1990年 / 169卷 / 01期

关键词：

D O I：

10.1016/S0020-1693(00)82035-6

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

(Ph4As)2[TcN(dto)2] can be prepared starting from TcNCl4- or TcNCl2(Ph3P)2. The compound crystallizes in at least two modifications: as well as a triclinic form (S. F. Colmanet and M. F. Mackay, Inorg. Chim. Acta, 147 (1988) 173) a monoclinic one has been found (space group C2/c, Z = 4, a = 19.424(3), b = 11.254(2), c = 24.958(3) Å, β = 107.68(1)°; R = 0.048). Distances and angles in the complex anions in both modifications are almost identical within experimental error. Oxidation of [TcN(dto)2]2- by Cl2 produces the Tc(VI) complex TcNCl4- exclusively, whereas during the Br2 oxidation technetium(VI) intermediates are generated containing mixed Br/dto coordination spheres which can be monitored easily by EPR spectroscopy. © 1990.

引用

页码：49 / 53

页数：5

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