10.1021/acs.inorgchem.7b00110.s001 Jose M. Seco Jose M. Seco Antonio Rodríguez-Diéguez Antonio Rodríguez-Diéguez Daniel Padro Daniel Padro Jose A. García Jose A. García Jesus M. Ugalde Jesus M. Ugalde Eider San Sebastian Eider San Sebastian Javier Cepeda Javier Cepeda Experimental and Theoretical Study of a Cadmium Coordination Polymer Based on Aminonicotinate with Second-Timescale Blue/Green Photoluminescent Emission American Chemical Society 2017 polymer phosphorescence Time-dependent density theory calculations lifetime ligand-centered Photoluminescent Emission coordination Aminonicotinate Theoretical Study Cadmium Coordination Polymer material emission singlet cadmium triplet states ligand-to-metal charge-transfer mechanisms CP Experimental Second-Timescale fluorescence transition 2017-03-06 20:43:35 Journal contribution https://acs.figshare.com/articles/journal_contribution/Experimental_and_Theoretical_Study_of_a_Cadmium_Coordination_Polymer_Based_on_Aminonicotinate_with_Second-Timescale_Blue_Green_Photoluminescent_Emission/4728553 A new cadmium/6-aminonicotinate-based coordination polymer (CP) with an unprecedented multicolored and long-lasting emission is reported. This material shows a blue fluorescence which rapidly turns to green persistent phosphorescence with a lifetime of nearly 1 s. Time-dependent density functional theory calculations revealed that electronic transitions arising from both first excited singlet and triplet states involving ligand-centered and ligand-to-metal charge-transfer mechanisms are responsible for such behavior.