Issue 6, 1991
From the journal:

Journal of the Chemical Society, Dalton Transactions

Co-ordination chemistry of 1,4,7-triazacyclononane (L) and its N-methylated derivative (L′) with silver(I) and mercury(II). The crystal structures of [AgL′2]PF6 and [AgL′(SCN)]

Claudia Stockheim,   Karl Wieghardt,   Bernhard Nuber,   Johannes Weiss,   Ulrich Flöurke  and  Hans-Jürgen Haupt  

Abstract

Reaction of AgPF6 in acetonitrile with an equimolar amount of the macrocycle 1,4,7-triazacyclononane (L) and addition of [NBu4]X (X = Cl, Br, I or CN) affords colourless to yellow precipitates of [AgL(X)]. The complexes [AgL′(X)](X = SCN or CN)(L′= 1,4,7-trimethyl-1,4,7-triazacyclononane) have been prepared similarly. When the ligand to AgPF6 ratio was 2:1 in ethanolic solution, colourless crystals of [AgL2]PF6 and [AgL′2]PF6 were obtained, respectively. A binuclear species [LAg(µ-CN)AgL]PF6 has been obtained from a solution of AgPF6 and L (1:1) in pyridine upon addition of NaCN (0.5 equivalent). Mercury(II) chloride reacts in water with L (1:2) and addition of NaPF6 to yield [HgL2][PF6]2; with L′ the complex [HgL′(Cl)]PF6 was obtained. Crystals of [AgL′2]PF6 are tetragonal, space group P42/m(no. 84), with a= 10.134(1), c= 12.771(2)Å, and Z= 2. Crystals of [AgL′(SCN)] are orthorhombic, space group Pcmn(no. 62), with a= 9.497(5), b= 11.837(8), c= 26.00(1)Å and Z= 8.

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Article information

DOI
https://doi.org/10.1039/DT9910001487
Article type
Paper

J. Chem. Soc., Dalton Trans., 1991, 1487-1490

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Co-ordination chemistry of 1,4,7-triazacyclononane (L) and its N-methylated derivative (L′) with silver(I) and mercury(II). The crystal structures of [AgL′2]PF6 and [AgL′(SCN)]

C. Stockheim, K. Wieghardt, B. Nuber, J. Weiss, U. Flöurke and H. Haupt, J. Chem. Soc., Dalton Trans., 1991, 1487 DOI: 10.1039/DT9910001487

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