10.1021/acs.cgd.6b01865.s001 Mousumi Garai Mousumi Garai Kumar Biradha Kumar Biradha One-Dimensional Coordination Polymers of Bis(3-pyridyl-acrylamido)ethane: Influence of Anions and Metal Ions on Their Solid State [2 + 2] Photochemical Polymerization and Dimerization Reactions American Chemical Society 2017 1 H NMR MALDI-TOF analyses form M L 2 polymerization crystal X-ray structure determination One-Dimensional Coordination Polymers perchlorate salts Dimerization Reactions coordination polymers crystal structures CPs 1 reactivity Metal Ions electrospray ionization mass spectrometry 2017-01-10 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/One-Dimensional_Coordination_Polymers_of_Bis_3-pyridyl-acrylamido_ethane_Influence_of_Anions_and_Metal_Ions_on_Their_Solid_State_2_2_Photochemical_Polymerization_and_Dimerization_Reactions/4564918 The coordination polymers (CPs) of bis­(3-pyridyl-acrylamido)­ethane (<b>L</b>) with nitrate, acetate, and perchlorate salts of Cu­(II), Cd­(II), and Zn­(II) were synthesized, and their crystal structures have been analyzed with respect to the influence of anions, hydrogen bonding, and their solid state [2 + 2] photochemical reactivity. Four out of the six CPs (<b>1</b>–<b>4</b>) containing NO<sub>3</sub><sup>–</sup> and AcO<sup>–</sup> ions were found to form one-dimensional chains and exhibit solid state [2 + 2] reactivity. Two CPs (<b>5</b>–<b>6</b>) containing ClO<sub>4</sub><sup>–</sup> ions were found to form M<b>L</b><sub><b>2</b></sub> discrete complexes which are photostable. The CPs <b>1</b> and <b>4</b> were found to form single [2 + 2] dimers, while <b>2</b> and <b>3</b> resulted in the formation of polymers via solid state [2 + 2] polymerization upon irradiation. The photoproducts are characterized by <sup>1</sup>H NMR, electrospray ionization mass spectrometry, and matrix-assisted laser desorption/ionization–time of flight (MALDI-TOF) spectra. The dimer was charecterized by single crystal X-ray structure determination. The MALDI-TOF analyses of polymers indicate the highest degree (29-mer) of polymerization.