Self-assembled Transition Metal Coordination Frameworks of ...

_ _ , p f 7, Copper-(II) complexes
(Calc.): C, 39.16 (38.63); H, 3.24 (2.93); N, 12.89 (12.87); S, 5.04 (4.91)%. Molar
conductivity (AM, l0'3 M DMF): 49 Q" cmz moi".
[Cu2(HL3)Br2]Br- H20 (12)
A solution of CuBr2 (0.338 g, 1.5 mmol) in 10 1nl of methanol was added to a
solution of HZL3 (0.291 g, 0.75 mmol) in 40 ml methanol and refluxed for 20 minutes
and allowed to stand at room temperature. Brown product separated out was filtered,
washed with methanol followed by ether and dried over P40“; in vacuo. Yield: 0.536
g (93.1%). Elemental Anal. Found (Calc.): C, 33.12 (32.83); H, 2.60 (2.23); N, 11.10
(10.94); s, 4.21 (4.17)%. Molar conductivity (AM, 10"‘ M DMF): 76 Q" cmz mold.
[Cu3(HL4) C12] C13- 21120 (13)
A solution of CuCl;' 2H2O (0.344 g, 2 mmol) in 10 ml of methanol was added
to a solution of HZL4 (0.427 g, 1 mmol) in 40 ml boiling methanol and refluxed for 20
minutes and the green colored solution allowed to stand at room temperature. Dark
colored product separated out was filtered, washed with methanol followed by ether
and dried over P4010 in vacuo. Yield: 0.379 g (68.9%). Elemental Anal. Found
(Calc.): C, 33.68 (33.47); H, 2.91 (2.56); N, 13.59 (l3.58)%. Molar conductivity (AM,
10;’ M DMF): 214 Q" ¢m2 moi‘.
[Cu2(HL4)(HSO.,)~ H2O]SO.,- 61120 (14)
4
To a solution of HZL (0.422 g, l mmol) in hot methanol (40 ml), CuSO4­
51-IZO (0.500 g, 2 mmol) in hot methanol were added and refluxed the solution for 20
minutes. The solution was kept for precipitation; the dark brown precipitate was then
filtered and washed with absolute ethanol and diethyl ether, and dried over P4010 in
vacu0_. Yield: 0.721 g (83.1%). Elemental Anal. Found (Calc.): C, 31.88 (31.83); H,
3.88 (3.72); N, 12.90 (12.91)%. Molar conductivity (.'"\_\4, 10"‘ M methanol): 81 Q‘!
cmz mol'l.
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