A new type of germanium-vanadate cluster, [Ge5V6O21(heda)6] (Hheda = N-(2-hydroxyethyl)ethylenediamine)Electronic supplementary information (ESI) available: Crystallographic data (CIF), PXRD patterns, IR and thermogravimetry. CCDC 906649. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c3ce26726a

• Main Authors: You, Li-Sheng, Zhu, Qin-Yu, Zhang, Xiang, Pu, Ya-Yang, Bian, Guo-Qing, Dai, Jie
• Format: Article
• Language: English
• ISSN: 1466-8033
• DOI: 10.1039/c3ce26726a

A germanium-vanadate cluster [Ge 5 V 6 O 21 (heda) 6 ] ( 1 ) with covalently coordinated N -(2-hydroxyethyl)ethylenediamine (Hheda) was synthesized and crystallographically characterized. The cluster is a new type of GeVO cluster, in which there coexists various oxo-polyhedra of V IV and Ge IV , octahedral VO 6 , VO 5 N, and GeO 4 N 2 , VO 5 pyramid and GeO 4 tetrahedron. The cluster is also an unusual neutral germanium-polyoxovanadate. The deprotonated hydroxyl group and part of the amine groups of the heda ligand covalently coordinate to the cluster. There are three coordination modes of the ligand, monodentate, chelating and multi-chelating modes. The organic ligand plays important roles in the charge balance and cluster construction. A germanium-vanadate cluster [Ge 5 V 6 O 21 (heda) 6 ] ( 1 ) with covalently coordinated N -(2-hydroxyethyl)ethylenediamine (Hheda) was synthesized and crystallographically characterized.