Self-assembly of an operating electrical circuit based on shape complementarity and the hydrophobic effect.

470 Ó WILEY-VCH Verlag GmbH, D-69469 Weinheim, 1998 0935-9648/98/0604-0470 $ 17.50+.50/0 Adv. Mater. 1998, 10, No. 6 FTIR (KBr): n = 2245, 2180, 2115, and 1024 cm. 13 C CP MAS NMR (resonance frequence 100.61 MHz, spining rate 12 kHz): d = 80.6, 69.4, 64.6, 56.7, 52.4, 26.3 and 10.9. Elemental analysis: calcd for ZrC12H18O4: Zr 28.75, C 45.39, H 5.67, O 20.19; found: Zr 33.50, C 41.35, H 5.35. Ta(OEt)5 and Ti(O Pr)4: Prepared similarly using 3 (7.54 mmol, 0.83 g) and a mixture of Ta(OEt)5 (3.89 mmol, 1.58 g) and Ti(O Pr)4 (3.37 mmol, 0.96 g), and isolated as a light brown powder (3.23 g). FTIR (KBr): n = 2245, 2180, 2124, and 1028 cm. C CP MAS NMR (resonance frequency 100.61 MHz, spinning rate 12 kHz): d = 78.9, 69.5, 60.7, 50.7, 26.0, and 19.5. Elemental analysis: calcd for TiTaC24H37O9: Ti 6.86, Ta 25.94, C 41.31, H 5.30, O 20.59; found: Ti 6.80, Ta 24.30, C 41.02, H 4.97. Preparation of 5: {Co2(CO)6}2(m2,h:m2,h-HOCH2±C oC±C oC±CH2 OH) 4 was prepared as described in [13]. 4 (0.53 g, 0.78 mmol) was reacted with Ti(OPr)4 (0.23 g, 0.8 mmol) following the procedure described above. 5 was isolated as a deep-brown solid (0.76 g). FTIR (KBr): n = 2102, 2083, 2061, 2027 cm. Elemental analysis: calcd for TiCo4C24H18O18: Ti 5.45, Co 26.85, H 2.07; found: Ti 6.20, Co 29.40, H 2.10.