Table 1.

Exponential time constants of TRIR spectral evolution and emission decay of Re(dmp)(W)AzM. Kinetics data obtained from solutions in 50 mM KP_i buffer in D₂O (pD ~7.0) at 21 °C.

Re(dmp)(W)AzM	M = ZnII	M = CuII	M = CuII emissionc	M = CuI Alternative TRIR	M = CuI emissione
ultrafast CS rise / CT decay	<1 ps	<1 ps		<1ps
relaxationa	-	4-5 ps		3-4 ps
CS rise / CT decay relaxation	≤50 ps	100-270 ps	2.9±0.1 nsd	40-100 ps	350 ps
CS rise / CT decay	-	4-8 ns	19±1 ns	1.6 ns
CS rise / CT decay	-	-	-	8±1.6 ns
CS rise / CT decay	-	-	-	27±7 ns	25 ns
CS + CT decay	18±4 ns	40-60 ns	63±1 ns	-
	157±7 nsa
CS decay		1.0-1.5 μsb		330±172 ns
				3.6±0.3 μs

^aAdditional very weak ³CT signal is present, decaing with τ of 1.3 μs.

^bVery weak residual signal.

^c1.9 mM solution in H₂O, 50 mM NaP_i (pH ≅7.1).

^dLikely due to dynamic Stokes shift.

^eFrom ref. 9.