Synthesis and crystal structures of two rare-earth metal polymers of olsalazine

• Published in: Journal of coordination chemistry Vol. 62; no. 16; pp. 2682 - 2688
• Main Authors: Tang, Yun-Zhi, Tan, Yu-Hui, Ge, Zong-Tang, Liu, Zhen-Xin, Liao, Chun-FA, Xie, Xiao-Bin
• Format: Journal Article
• Language: English
• Published: Taylor & Francis Group 20.08.2009
• Subjects: Crystal structure; Europium complex; Gadolinium complex; Olsalazine
• ISSN: 0095-8972; 1029-0389
• DOI: 10.1080/00958970902906268

Two 1-D linear coordination polymers, {[Gd 2 (L) 2 · (Phen) 2 · 2(H 2 O) · 2(NO 3 )] · 2(EtOH)} n (1) (H 2 L = olsalazine) and {[Eu 2 (L) 2 ·(Phen) 2 · 2(H 2 O) · 2(NO 3 )] · EtOH} n (2), were obtained from self-assembly of Gd(NO 3 ) 3 · 8H 2 O or Eu(NO 3 ) 3 · 8H 2 O with olsalazine. Both complexes are 1-D polymers, for 1 with crystal data: P 1 , a = 11.651(4), b = 11.865(4), and c = 12.296(4) Å, α = 77.984(4)°, β = 65.559(4)°, and γ = 74.558(5)°, V = 1482.1(8) Å 3 , Z = 1, R 1 = 0.0389, wR 2 = 0.0793, and 2 with crystal data: P 1 , a = 11.626(3), b = 11.834(3), c = 12.287(4) Å, α = 77.743(3), β = 65.576(3), γ = 74.371(3)°, V = 1472.5(5) Å 3 , Z = 1, R 1 = 0.0609, wR 2 = 0.1185. Central atoms (Gd or Eu) in both complexes adopt nine-coordinate tricapped trigonal prism geometry. CCDC No.: 694918 (1), 694919 (2).