Combination of D-π-A stilbazolium-type dye DANP(DANP=trans-4-(4″-(N,N-diethylaminostyryl))-N-methyl-pyridinium)with zinc chloride results in a new hybrid(DANP-H)(ZnCl4)(1),and its structure was determined by single-...Combination of D-π-A stilbazolium-type dye DANP(DANP=trans-4-(4″-(N,N-diethylaminostyryl))-N-methyl-pyridinium)with zinc chloride results in a new hybrid(DANP-H)(ZnCl4)(1),and its structure was determined by single-crystal X-ray diffraction method.In the hybrid,two independent DANP-H^2+cations exhibit two kinds of configurations,i.e.,conjugation-broken and conjugation-maintained fashions,and the X-aggregation mode of(DANP-H)^2+cations is driven by strong C–H…Cl hydrogen bonds and C–H…πinteractions.Consequently,blue-shift was observed in its adsorption spectrum,and unquenched red photoluminescence can be monitored.Interestingly,dual stimuli-responsive performance and reversible photo/thermochromic behaviors appeared,which can be assigned to the electron transfer from Cl-3p/DANP-πtoπ*antibonding orbitals of the conjugation-maintained DANP.展开更多
文摘Combination of D-π-A stilbazolium-type dye DANP(DANP=trans-4-(4″-(N,N-diethylaminostyryl))-N-methyl-pyridinium)with zinc chloride results in a new hybrid(DANP-H)(ZnCl4)(1),and its structure was determined by single-crystal X-ray diffraction method.In the hybrid,two independent DANP-H^2+cations exhibit two kinds of configurations,i.e.,conjugation-broken and conjugation-maintained fashions,and the X-aggregation mode of(DANP-H)^2+cations is driven by strong C–H…Cl hydrogen bonds and C–H…πinteractions.Consequently,blue-shift was observed in its adsorption spectrum,and unquenched red photoluminescence can be monitored.Interestingly,dual stimuli-responsive performance and reversible photo/thermochromic behaviors appeared,which can be assigned to the electron transfer from Cl-3p/DANP-πtoπ*antibonding orbitals of the conjugation-maintained DANP.
