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Crystal Structure, Magnetic Properties, and Electronic Structure of Ni(NCNH2)4Cl2 and Co(NCNH2)4Cl2 by Xiaohui Liu; Peter Kroll; Richard Dronskowski is a Chemistry article available to read on EtoBox.

What is Crystal Structure, Magnetic Properties, and Electronic Structure of Ni(NCNH2)4Cl2 and Co(NCNH2)4Cl2 about?

The crystal structures of Ni(NCNH 2 ) 4 Cl 2 and Co(NCNH 2 ) 4 Cl 2 , the first complexes with cyanamide as a neutral ligand, have been determined from single crystal data (Im3m, Z = 6, a = 1259.3(2) pm, R 1 = 0.0245 for Ni(NCNH 2 ) 4 Cl 2 and a = 1266.3(2) pm, R 1 = 0.0241 for Co(NCNH 2 ) 4 Cl 2 ; both 329 intensities and 23 parameters). Ni 2+ and Co 2+ are octahedrally coordinated by four equatorial H 2 NCN molecules and two axial chloride ions, and the 20 and 19 electron octahedral complexes are connected by a network of hydrogen bonds. The cyanamide ligands are slightly bent (166°), and the two N±C distances are 112 and 133 pm. Ni(NCNH 2 ) 4 Cl 2 /Co(NCNH 2 ) 4 Cl 2 are Curie paramagnets with two/three unpaired electrons.

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Author

Xiaohui Liu; Peter Kroll; Richard Dronskowski

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Wiley (ISSN 0372-7874)

Published

2001

Language

EN

Field

Chemistry (Physical Sciences)