, Anal (%), air (yield 25 mg, 0.036 mmol, 60% based on the starting complex)

, Calculated for C 29 H

, cm -1 ): 1642 s, 1589 m, 1504 m, 1438 s, 1353 s, 1300 m, 1260 w, 1167 w, 1100 m, 980 w, 936 w, 776 s, 722 s, 656 m, 576 w, 469 m. Li:Zn ratio found 1, vol.10, p.1

, 6 (py) 2 ] (25 mg, 0.03 mmol) was dissolved in 2 mL of DMF and 4 mL of CH 3 CN were added. Then 2 mL of H 3 btb (53 mg, 0.12 mmol) DMF solution was added. The resultant mixture was sealed in a glass tube and heated up to 100?C (1?C/min) and kept at 100?C for 24 hours. Big violet transparent crystals were filtered off and dried in air (yield 30 mg, 0.038 mmol, 65% based on the starting complex)

, Calculated for C 39 H

, cm -1 ): 1664 s, 1602 s, 1522 s, 1389 s, 1251 w, 1180 w, 1100 w, 1003 m, 851 m, 785 s, 709 w, 660 w, 469 m. Li:Co ratio found 1.14 : 1. Synthesis of [LiCo(btb)(dma) 2 ]·2DMA (5dma). The method of synthesis was similar to that for 5dmf but in DMA solvent instead of DMF. Big violet transparent crystals were filtered off and dried in air (yield 36 mg, 0.042 mmol, 72% based on the starting complex). Anal (%)

, IR (KBr, cm -1 ): 1620 s, 1593 s, 1553 w, 1504 w, 1380 s, 1261 w, 1176 w, 1140 w, 1096 w, 1012 m, 865 m, 803 w, 785 s, 701 w, 665 w, 580w, 482 m. Li:Co ratio found 1, vol.12, p.1

, The method of synthesis was similar to that for 5dmf but with [Li 2 Zn 2 (piv) 6 (py) 2 ] as starting complex. Colourless transparent crystals were filtered off and dried in air

, Li:Zn ratio found 1.11 : 1. Synthesis of [LiZn(btb)(dma) 2 ]·2DMA (6dma). The method of synthesis was similar to that for 5dma but in DMA solvent instead of DMF and with [Li 2 Zn 2 (piv) 6 (py) 2 ] as starting complex. Colourless transparent crystals were filtered off and dried in air, N, 6.8. IR (KBr, cm -1 ): 1651 s, 1593 s, 1549 m, 1496 w, 1442 m, 1385 s, 1251 m, 1180 m, 1135 w, 1096 m, 1056 w, 1011 w, 860 m, 807 w, 780 s, 713 w, 665 m, 563 w, 496 m

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