Synthetic Route of 20439-47-8, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.20439-47-8, Name is (1R,2R)-Cyclohexane-1,2-diamine, molecular formula is C6H14N2. In a Article，once mentioned of 20439-47-8
We report the synthesis and characterization of C2-symmetrical lanthanide complexes supported by enantiopure hexadentate ligands derived from 1,2-diaminocyclohexane. Coordination of (R,R)- or (S,S)-N,N,N?,N?-tetrakis(2-pyridylmethyl)-trans-1,2-diaminocyclohexane (tpdac) to samarium, europium, terbium, and dysprosium generates the corresponding C2-symmetrical (tpdac)Ln(OTf)3 complexes in high yields. The tpdac ligands are competent sensitizers for lanthanide luminescence, yielding modest emissions (phi of ?28%). Additionally, the complexes exhibit strong circularly polarized luminescence (|glum| values of up to 0.13, 0.09, 0.22, and 0.15 for Sm, Eu, Tb, and Dy, respectively) in solution. We also observed that some transitions typically associated with small dissymmetry factors exhibit unusually high |glum| values and, therefore, should not be overlooked in future studies.
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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI