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SYNTHESIS AND COORDINATION CHEMISTRY OF THE PYRIDYL PENDANT-ARM AZAMACROCYCLES 1-(2-PYRIDYLMETHYL)-1,5,9-TRIAZACYCLODODECANE L(1) AND 1-(2-PYRIDYL-2'-ETHYL)-1,5,9-TRIAZACYCLODODECANE L(2), WITH NICKEL(II), COPPER(II) AND ZINC(II) - CRYSTAL-STRUCTURES OF [NI(L(1))(O2NO)]NO3 AND [ZNL(2)][ZN(NO3)(3.67)CL-0.33]
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UNSPECIFIED (1995) SYNTHESIS AND COORDINATION CHEMISTRY OF THE PYRIDYL PENDANT-ARM AZAMACROCYCLES 1-(2-PYRIDYLMETHYL)-1,5,9-TRIAZACYCLODODECANE L(1) AND 1-(2-PYRIDYL-2'-ETHYL)-1,5,9-TRIAZACYCLODODECANE L(2), WITH NICKEL(II), COPPER(II) AND ZINC(II) - CRYSTAL-STRUCTURES OF [NI(L(1))(O2NO)]NO3 AND [ZNL(2)][ZN(NO3)(3.67)CL-0.33]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS (22). pp. 3659-3666. ISSN 0300-9246.
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Abstract
The azamacrocyclic ligands 1-(2-pyridylmethyl)-1,5,9-triazacyclodod L(1) and 1-(2-pyridyl-2'-ethyl)-1,5,9-triazacyclododecane L(2) have been prepared, and their complexes with hydrated nickel(II). copper(ir) and zinc(II) nitrates have been isolated. The nickel(II) complexes are high spin and six-co ordinate, whilst C-13 NMR spectroscopy shows that [ZnL(1)(OH2)](2+) exists as a symmetric trigonal-bipyramidal isomer in solution, and [ZnL(2)](2+) exists as a 2:1 mixture of tetrahedral and asymmetric trigonal-bipyramidal isomers. X-Ray crystallography has been used to determine the solid-state structures of the octahedral [NiL(1)(O2NO)](+), and the tetrahedral isomer of [ZnL(2)](2+).
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Journal or Publication Title: | JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | ||||
Publisher: | ROYAL SOC CHEMISTRY | ||||
ISSN: | 0300-9246 | ||||
Official Date: | 21 November 1995 | ||||
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Number: | 22 | ||||
Number of Pages: | 8 | ||||
Page Range: | pp. 3659-3666 | ||||
Publication Status: | Published |
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