Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 5197-95-5, molcular formula is C13H22BrN, introducing its new discovery. SDS of cas: 5197-95-5
Aerial oxidation of MnII/ptt3- (ptt3- = propane-1,2,3-trithiolate) mixtures gives [Mn2(pttd)2]2-, where pttd4- is the mono(disulfide) of ptt3-. (NEt3Bz)2[Mn2(pttd)2] (2) crystallizes in space group P21/c with (at -158 C) a = 11.540(2) A, b = 12.115(2) A, c = 17.478(4) A, beta= 101.78(1), and Z = 2. The anion contains a doubly-bridged [Mn2S8] core (Mn…Mn = 3.598(2) A) with five-coordinate MnIII ions, very similar to previously reported [Mn2(edt)4]2- (anion of 1; edt2- = ethane- 1,2-dithiolate). Aerial oxidation of MnII/pdt2- (pdt2- = propane-1,3-dithiolate) mixtures gives [Mn3(pdt)5]2-, which is mixed valent (MnII, 2MnIII). (PPh4)2[Mn3(pdt)5] (3) crystallizes in space group P1 with (at -161 C) a = 14.385(6) A, b = 23.734(11) A, and Z = 2. The anion contains a near-linear MnIIIMnIIMnIII unit with five-coordinate MnIII, six-coordinate MnII, and three thiolate bridges between each Mn2 pair; Mn…Mn separations are 3.123(3) and 3.101(3) A. Aerial oxidation of MnII/edt2-/ImH (ImH = imidazole) mixtures gives [Mn(edt)2(ImH)]-. (NEt4)[Mn(edt)2(ImH)] (4) crystallizes in space group P21/n with (at -72 C) a = 13.974(5) A, b = 14.317(5) A, c = 10.564(3) A, beta= 90.13(2), and Z = 4. The anion is five-coordinate and square-pyramidal. Aerial oxidation of MnII/edt2-/Im- mixtures gave [Mn2(Im)(edt)4]3-, which contains two MnIII ions. (NMe4)3[Mn2(Im)(edt)4] (5) crystallizes in space group Pna21 with (at -160 C) a 17.965(5) A, b = 16.094(4) A, c = 14.789(3) A, and Z = 4. The five-coordinate MnIII ions are bridged by the Im- group across a Mn…Mn separation of 6.487(2) A. The anion of 4 contains high-spin MnIII (S = 2) and exhibits inter-anion antiferromagnetic exchange interactions (J = -0.15 cm-1, g = 1.91) propagated by interanion NH…S hydrogen bonds. Complexes 1-3 and 5 all possess intraanion antiferromagnetic exchange interactions; the fitting parameters are as follows; 1, J = -19.0 cm-1, g = 1.96, D = -0.22 cm-1; 2. J = -16.4 cm-1, g = 1.96, D = -0.22 cm-1; 3. J = -18.8 cm-1, g = 2.00; 5, J = -1.75 cm-1, g – 1.84. D = -0.028 cm-1 (H = -2JSiSj convention). Complexes 1, 2, and 5 have 5 = 0 ground states, while that of 3 is S = 3/2.
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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI