Related Products of 4411-80-7, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.4411-80-7, Name is 6,6′-Dimethyl-2,2′-bipyridine, molecular formula is C12H12N2. In a Article，once mentioned of 4411-80-7
Bidentate ligands 2,2?-biquinoline (biq) and 6,6?-dimethyl-2,2?-bipyridine (dmbpy) with steric hindrance substituents cis to the nitrogen atoms have been used in the synthesis of transition metal complexes. Six new doubly end-on azido-bridged binuclear complexes [M2(biq)2(mu1,1-N3)2(N3)2] (M = Ni (1), M = Co (2)), [M2(biq)2(mu1,1-N3)2Cl2] (M = Ni (3), M = Co (4)), [M2(dmbpy)2(mu1,1-N3)2(N3)2] (M = Ni (5), M = Co (6)) and one end-to-end thiocyanato-bridged polymeric [Ni(dmbpy)(mu1,3-SCN)(NCS)]n (7) have been synthesized and characterized by single crystal X-ray diffraction analysis and magnetic studies. Complexes 1-6 comprise five-coordinate M(II) ions bridged by two end-on azide ligands. The bridging M-N-M bond angles are in the small range 104.1-105.2. Complex 7 consists of a singly thiocyanate-bridged Ni(II) chain in which Ni(II) ions are five-coordinate. This research suggests that the bulky ligands play a key role in the formation of five-coordinate coordination structure. All complexes display intramolecular intermetallic ferromagnetic coupling with JNiNi and JCoCo of ca. 23 or 13 cm-1 based on the Hamiltonian over(H, ^) = – 2 J over(S, ^)1 over(S, ^)2 (S1 = S2 = 1 for Ni2, or 3/2 for Co2). The singly SCN–bridged chainlike complex 7 shows intrachain ferromagnetic interaction with J = 3.96(2) cm-1 and D = -4.55(8) cm-1 (over(H, ^) = – 2 J ?i = 1 (over(S, ?)i over(S, ^)i + 1) – D ?i = 1 [(over(S, ^)iZ)2 – 2 / 3]). Magneto-structural correlationship has been investigated.
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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI