Formation of high nuclearity mixed-valent polyoxovanadates in the presence of copper amine complexes

Journal of Chemical Sciences

Sanjeev Sharma²  K V Ramanujachary¹  S E Lofland¹  A Ramanana1²  Jency Thomas² 

[1] Department of Chemistry and Physics, Center for Materials Research and Education, Rowan University, 201 Mullica Hill Road, Glassboro, NJ 08028, USA$$;Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi 110 016$$

关键词: Müller-type clusters;    polyoxovanadate;    copper amine complex;    magnetism;    hydrothermal conditions.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Two new Müller-type clusters, a one-dimensional solid {Cu(𝑒𝑛)2}4[Cl ⊂ V15O36]$cdot$12H2O 1, and a three-dimensional solid {Cu(𝑝𝑛)2}4[Cl ⊂ V18O42]$cdot$12H2O 2, have been synthesised by employing identical hydrothermal conditions except varying the nature of organic diamine. 1 crystallised in a chiral space group 𝑃212121 with 𝑎 = 12.757(1), 𝑏 = 18.927(2) and 𝑐 = 28.590(3) Å, and 𝑍 = 4. 2 crystallised in a tetragonal system with space group 𝑃4/𝑛𝑛𝑐, 𝑎 = 15.113(1) and 𝑐 = 18.542(3) Å, and 𝑍 = 2. Mixed-valent vanadium ions in structures 1 and 2 have been established both by magnetisation and bond-length bondvalence measurements. Chemistry of formation of high nuclearity polyoxovanadate clusters is discussed.

【 授权许可】

Unknown