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Investigations of the Copper Bromide–Ethylenediamine System: The Hydrothermal Synthesis and X-Ray Crystal Structure of [Cu(H2NCH2CH2NH2)2] [{Cu2Br4}] and [Cu(H2NCH2CH2NH2)2] [{Cu5Br7}] by Robert P. Hammond; Douglas J. Chesnut; Jon A. Zubieta is a Materials Science article available to read on EtoBox.

What is Investigations of the Copper Bromide–Ethylenediamine System: The Hydrothermal Synthesis and X-Ray Crystal Structure of [Cu(H2NCH2CH2NH2)2] [{Cu2Br4}] and [Cu(H2NCH2CH2NH2)2] [{Cu5Br7}] about?

The hydrothermal reactions of CuBr 2 , CuBr, and ethylenediamine have resulted in the synthesis of two new compounds. [Cu(H 2 NCH 2 CH 2 NH 2 ) 2 ] [{Cu 2 Br 4 }] has a two-dimensional sheet structure while [Cu(H 2 NCH 2 CH 2 NH 2 ) 2 ] [{Cu 5 Br 7 }] crystallizes as a three-dimensional network. Both compounds were characterized by single-crystal X-ray di4raction. The following are the crystal data for [Cu(H 2 NCH 2 CH 2 NH 2 ) 2 ] [{Cu 2 Br 4 }] (1), triclinic space group P1 (No. 1) with a ‫؍‬ 6.491(1) A s , b ‫؍‬ 8.012(2) A s , c ‫؍‬ 8.070(2) A s , ‫؍‬ 107.713(5)3, ‫؍‬ 109.976(4)3, ‫؍‬ 96.815(4)3, Z ‫؍‬ 1, d calc ‫؍‬ 2.88 g cm ؊3 , and wR2 (R1) ‫؍‬ 0.093(0.037), and [Cu(H 2 NCH 2 CH 2 NH 2 ) 2 ] [{Cu 5 Br 7 }] (2), orthorhombic space group Pnma (No. 62), with a ‫؍‬ 12.886(4) A s , b ‫؍‬ 16.776(5) A s , c ‫؍‬ 9.170(3) A s , Z ‫؍‬ 4, d calc ‫؍‬ 3.55 g cm ؊3 , and wR2 (R1) ‫؍‬ 0.099 (0.073). Both structures consist of anionic one-dimensional copper(I) bromide chains interspersed with cationic [Cu(H 2 NCH 2 CH 2 NH 2 ) 2 ] 2؉ units.

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Author

Robert P. Hammond; Douglas J. Chesnut; Jon A. Zubieta

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0022-4596)

Published

2001

Language

EN

Field

Materials Science (Physical Sciences)