Modulation of dark conductivity over a 1 x 10-12 to 1 x 10-5 S/cm range through ancillary group modification in amorphous solids of ethyne-bridged (porphinato)zinc(II) oligomers

被引:17
作者
Frail, Paul R.
Susumu, Kimihiro
Huynh, Michael
Fong, Jennie
Kikkawa, J. M. [2 ]
Therien, Michael J.
机构
[1] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA
[2] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
关键词
D O I
10.1021/cm701914a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Modulation of dark conductivity (DC) over a 1 × 10-12 to 1 × 10-5 S/cm range through ancillary group modification in amorphous solids of ethylene-bridged (Prophinato)zinc (II) (PZn n)oligomers was analyzed. Results from atomic absorption spectroscopy show that the oligomers exhibit large intermolecular interactions in the solid state. The oligomer powder samples are amorphous with no discernible diffraction peaks while the oligomers are decomposed at 220°C. The results also show that PZnn species bearing stabilizing groups behave as insulators over the PZn1-PZn5 length scale. The substituents show augmentation of DC with increasing oligomer length, while the substituents enhance oligomeric interchain electronic coupling in the solid state.
引用
收藏
页码:6062 / 6064
页数:3
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