La8Br7Ni4: ribbons of Ni hexagons in condensed La6 trigonal prisms |
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| Authors: | Zheng Chong Mattausch Hansjürgen Hoch Constantin Simon Arndt |
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| Institution: | Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, USA. czheng@niu.edu |
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| Abstract: | A ternary lanthanum bromide La 8Br 7Ni 4 was synthesized from La, LaBr 3, and Ni under an Ar atmosphere at 830 degrees C. It crystallizes in space group C2/ m (No. 12) with lattice constants a = 29.528(4) A, b = 4.0249(6), c = 8.708(1) A, and beta = 94.515(2) degrees . The structure features condensed Ni-centered La 6 trigonal prisms. The Ni atoms are bonded to each other to form ribbons of Ni hexagons. Band structure, bonding, and physical properties of the compound have been investigated. |
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