The crystal and molecular structure of the bis(4-N,N′-dimethylaminopyridine) solvate of di-μ-salicylicacidato bis{nitratodioxouranium(VI)}

✍ Scribed by L.R. Nassimbeni; A.L. Rodgers; J.M. Haigh

• Publisher: Elsevier Science
• Year: 1976
• Tongue: English
• Weight: 450 KB
• Volume: 20
• Category: Article
• ISSN: 0020-1693
• DOI: 10.1016/s0020-1693(00)94108-2

✦ Synopsis

The structure of the title compound[(C,H&O&)-(C,H,Jv,)], has been determined by Patterson and Fourier methods from single crystal X-ray diffraction data collected on a four-circle diffractometer. Fullmatrix least-squares refinement yielded a final con

ventional R of 0.041 for 2189 reflections. The complex crystallizes in the space group PT with a = Il. 004(S), b = 9.981(j), c = 9.928(5) A, cx = 119.6(3), /3 = 107.7(3), y = 81.9(3)", D,, = 2.17, D, = 2.173g cme3. The structure is dimeric. The uranium atoms are eight-coordinate and are bridged via centrosymmetrically related carboxylic oxygen atoms. The nitrate group is bidentate and the average U-O (&and) distance is 2.463 i%. Hydrogen bonding of the type N-H. * -0 links two dimethyl-aminopyridine molecules to the dimer.