10.1021/ic402993y.s001 Yong-Gang Sun Yong-Gang Sun Shu-Fang Ji Shu-Fang Ji Peng Huo Peng Huo Jing-Xue Yin Jing-Xue Yin Yu-De Huang Yu-De Huang Qin-Yu Zhu Qin-Yu Zhu Jie Dai Jie Dai Role of the Coordination Center in Photocurrent Behavior of a Tetrathiafulvalene and Metal Complex Dyad American Chemical Society 2014 photocurrent response property Photocurrent Behavior electrode films Coordination Center photocurrent response behavior electrochemical properties 2L 2I electron acceptor methylviologen Metal Complex DyadSmall TTF photoelectron conversion research Complex 1 Complex 3 pyridylmethylamide groups metal coordination centers photocurrent behavior dimeric species coordination center coordination compounds role photoelectron donor tetrathiafulvalene ligand L material coordination polymer optoelectronic devices 2014-03-17 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Role_of_the_Coordination_Center_in_Photocurrent_Behavior_of_a_Tetrathiafulvalene_and_Metal_Complex_Dyad/2314486 Small organic molecule-based compounds are considered to be promising materials in photoelectronics and high-performance optoelectronic devices. However, photoelectron conversion research based on functional organic molecule and metal complex dyads is very scarce. We design and prepare a series of compounds containing a tetrathiafulvalene (TTF) moiety substituted with pyridylmethylamide groups of formulas [Ni­(acac)<sub>2</sub>L]·2CH<sub>3</sub>OH (<b>1</b>), [Cu<sub>2</sub>I<sub>2</sub>L<sub>2</sub>]·THF·2CH<sub>3</sub>CN (<b>2</b>), and [MnCl<sub>2</sub>L<sub>2</sub>]<sub><i>n</i></sub>·2<i>n</i>CH<sub>3</sub>CH<sub>2</sub>OH (<b>3</b>) (L = 4,5-bis­(3-pyridylmethylamide)-4′,5′-bimethylthio-tetrathiafulvalene, acac = acetylacetone) to study the role of the coordination center in photocurrent behavior. Complex <b>1</b> is a mononuclear species, and complex <b>2</b> is a dimeric species. Complex <b>3</b> is a two-dimensional (2-D) coordination polymer. Spectroscopic and electrochemical properties of these complexes indicate that they are electrochemically active materials. The tetrathiafulvalene ligand L is a photoelectron donor in the presence of electron acceptor methylviologen. The effect of metal coordination centers on photocurrent response behavior is examined. The redox-active metal coordination centers should play an important role in improvement of the photocurrent response property. The different morphologies of the electrode films reflect the dimensions in molecular structures of the coordination compounds.