We report the structural and photophysical property analyses of a new emissive copper (I) complex CuI(PPh₃) (L) (1, L = 4,4′-dimethoxy-2,2′-bipyridine) which demonstrates solvatochromism. When recrystallized from acetonitrile, the originally orange color of 1 becomes yellow and demonstrates a blue-shifted, broad emission spectrum. This process is reversed when the yellow solid is redissolved in dichloromethane and recrystallized. The lattice parameters and angles found were a = 17.769 Å, β = 114.05° and a = 11.555 Å, angle β = 92.70° for the orange and yellow forms of 1, respectively, and there are notable structure differences for CuI(PPh₃) (L) in these two solids. When loaded into a mesoporous silica, the emission blue shift becomes greater, indicating a strong rigidochromic effect at room temperature. The emission from such copper complex loaded mesoporous silica matrix is quenched by oxygen and this quenching has been quantified.

我们报告了新的发光铜（I）复杂的CuI（PPh ₃）（L）（1，L = 4,4'-dimethoxy-2,2'-bipyridine）的结构和光物理性质分析，这表明了溶剂变色现象。从乙腈中重结晶时，原来的橙色1变为黄色，并显示出蓝移的宽发射光谱。当黄色固体重新溶解在二氯甲烷中并重结晶时，该过程相反。发现 橙色和黄色形式1的晶格参数和角度分别为a  = 17.769Å，β= 114.05°和a = 11.555Å，β= 92.70° ，并且CuI（PPh ₃）（L）在这两个固体中。当装入中孔二氧化硅中时，发射蓝移变得更大，表明在室温下有很强的刚性变色效应。负载有这种铜配合物的介孔二氧化硅基质的发射被氧气猝灭，并且已经对该猝灭进行了定量。