2.2.2. [Cd(DETA)]2[Cd(DETA)2]0.5[Cd2(phen)2V12O41Ge8(OH)7(0.5H2O)]·7.5H2O (**2**)

V2O5 (0.067 g, 0.36 mmol), GeO2 (0.069 g, 0.67 mmol) and TMAH (0.10 mL) were added to the H2O (3.00 mL) solution with stirring for a half-hour. Then, CdCl2 (0.183 g, 1 mmol) and phen (0.066 g, 0.33 mmol) were added, and the resulting suspension was further stirred for 4 h; the pH of the mixture was 5.0. Finally, the pH of the mixture was adjusted to 9.5 with DETA solution, which was stirred for 0.5 h, and then was sealed in a Teflon-lined stainless bomb and heated at 170 ◦C for 5 days. Black needle crystals were collected by filtration and washed with water (Yield: 0.086 g, 31.30% based on GeO2). Anal. Calcd for C36H78Cd4.5Ge8N13O56V12: C, 13.15; H, 2.39; N, 5.54%. Found: C, 12.91; H, 2.40; N, 5.33%.
