We prepared eight novel chiral arginine-bipyrenyl oligopeptides with different intramolecular distances between two organic luminophore fluorescent pyrene units and investigated their chiroptical properties in water at ambient temperature. These luminophores are highly soluble in water because of the presence of two arginine units; because they carry two pyrene units, they emit strong excimer circularly polarized luminescence (CPL) in the range of 450–600 nm (|g_CPL| ≈ (0.1–0.5) × 10^–2). When the number of atoms between the two intramolecular pyrenes units was even, the sign of the CPL signals was negative (−), whereas when the atom number was odd, the sign of the CPL signals was positive (+), even in water.

我们制备了八个新颖的手性精氨酸-联苯二酚寡肽，两个有机发光体荧光pyr单元之间的分子内距离不同，并研究了它们在室温下在水中的手性。由于存在两个精氨酸单元，这些发光体在水中高度可溶。因为它们带有两个pyr单元，所以它们发出的强准分子圆偏振发光（CPL）在450–600 nm（| g _CPL |≈（0.1–0.5）×10 ^–2）范围内。当两个分子内pyr单元之间的原子数为偶数时，CPL信号的符号为负（-），而当原子数为奇数时，即使在水中，CPL信号的符号也为正（+）。