采用激光诱导荧光技术对InCl分子C1Π1→X1Σ+荧光光谱进行了分析和归属, 在发射谱中探测到ν′=1向下的跃迁, 证明C态预离解只能发生在ν′=1之上。 并对C1Π1→X1Σ+的荧光衰变曲线进行了观测, 得到InCl分子C1Π1(ν′=1)态的无碰撞辐射寿命τ0≈11 ns及电子跃迁矩|Re|2≈5.95D2。

The laser induced fluorescence spectrum of the C1Π1→X1Σ+ for InCl molecule has been analyzed and assigned. The state C1Π1(ν′=1) is observed in emission spectrum, which proved that the predissociation of C1Π1 only occur above the ν′=1. The fluorescence decay of the C1Π1→X1Σ+ has been measured at different pressures. The collision-free fluorescence radiative lifetime of τ0≈11 ns and the electronic transition moment |Re|2≈5.95D2 for C1Π1 are obtained.