Synthesis of (C26 H40 N2O4)[Ln(NO3)5H2O] and Crystal Structure of (C26 H40 N2O4)[Eu(NO3)5H2O]

Abstract

Abstract: Four novel rare earth compounds H₂L[Ln(NO₃)₅H₂O](Ln=Pr,Nd,Sm,Eu; L= C₂₆ H₃₈ N₂O₄ : 1,7,10,16-tetraoxa-4,13-diaza-N, N ′-dibenzyl-cyclooctadecane) were synthesized and characterized by elemental analysis and IR. The crystal structure of C₂₆ H₄₀ N₂O₄[Eu·(NO₃)₅H₂O] was determined by X-ray analysis. The crystal belongs to triclinic, P1 space group with cell dimensions: a =0.9100(4) nm, b =1.3560(3) nm, c =1.6463(4) nm; α =68.62(2)°, β =74.84(3)°, γ =87.50 (2)°; Z =2. The central europium ion is bonded to ten oxygen atoms from the five nitrate groups and one oxygen atom from a water molecule. Coordination number is 11. 1,7,10,16-Tetraoxa-4,13-diaza-N, N ′-dibenzyl cyclo octadecane is not bonded to the europium ion.

Key words: Rare earths, Nitrato complex anion, N,N ′-dibenzyl cryptand(2,2)

CLC Number:

O614.33

TrendMD:

CHEN Zhao-Hui, JIN Lin-Pei, GUO Jian-Quan . Synthesis of (C₂₆ H₄₀ N₂O₄)[Ln(NO₃)₅H₂O] and Crystal Structure of (C₂₆ H₄₀ N₂O₄)[Eu(NO₃)₅H₂O][J]. Chem. J. Chinese Universities, 1998, 19(4): 502.

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Synthesis of (C₂₆ H₄₀ N₂O₄)[Ln(NO₃)₅H₂O] and Crystal Structure of (C₂₆ H₄₀ N₂O₄)[Eu(NO₃)₅H₂O]

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