Some embodiments of the present invention may be said to be directed to metal complexes of Formula I, wherein at least one of X1, X2, X3, R1, R2, R3, R4 and R5 is what may be characterized as an antenna capable of providing (e.g., absorbing and/or emitting) an appropriate electromagnetic signal. Some embodiments of the present invention are directed to ligands corresponding to metal complexes of Formula I. Some embodiments of the invention are directed to methods of determining renal function using at least one metal complex of Formula I.
本发明的某些实施例可被称为公式I的
金属配合物,其中X1、X2、X3、R1、R2、R3、R4和R5中至少一个可被表征为天线,能够提供(例如吸收和/或发射)适当的电磁信号。本发明的某些实施例涉及与公式I的
金属配合物相对应的
配体。本发明的某些实施例涉及使用至少一个公式I的
金属配合物来确定肾功能的方法。