The Redox-Active Chromium Phthalocyanine System: Isolation of Five Oxidation States from Pc<sup>4−</sup>Cr<sup>I</sup>to Pc<sup>2−</sup>Cr<sup>III</sup>
作者:Wen Zhou、John R. Thompson、Clifford C. Leznoff、Daniel B. Leznoff
DOI:10.1002/chem.201604155
日期:2017.2.16
PhIO or air generated the dinuclear [PcCr(THF)]2(μ‐O) (5), whereas the addition of one equivalent of AgSbF6 to 1 resulted in oxidation to THF‐solvated octahedral [PcCrIII(THF)2]SbF6 (6). The reduction of 1 with three sequential equivalents of KEt3BH resulted in the isolation of [K(DME)4][Pc3−CrII] (7), [K(DME)4]2[Pc4−CrII] (8) and [K6(DME)4][Pc4−CrI]2 (9), respectively. The reduced products are deep
使用PCCR分别实现与多个金属环和氧化态的一系列铬酞菁配合物的制备和结构表征II(1)(PC =酞菁)或PCCR II(THF)2(1⋅THF 2)作为起始原料。可溶的反应1⋅THF 2被Br 2或I 2,得到PCCR III卤化物络合物PcCrX(THF)(X = I / I 3,溴; 3,4,分别地)。用0.5当量的PhIO或空气处理1,生成双核[PcCr(THF)] 2(μ-O)(5),而将1当量的AgSbF 6加入1导致氧化为THF溶剂化的八面体[PcCr III(THF)2 ] SbF 6(6)。用三个连续当量的KEt 3 BH还原1可以分离出[K(DME)4 ] [Pc 3- Cr II ](7),[K(DME)4 ] 2 [Pc 4- Cr II ] (8)和[K 6(DME)4 ] [Pc 4−Cr I ] 2(9)。还原后的产品为深紫色,可见光的最大吸收在500–580
Phthalocyanine as a redox-active platform for organometallic chemistry
作者:Wen Zhou、Daniel B. Leznoff
DOI:10.1039/c7cc08781k
日期:——
complexes, which span three chromium and two Pc-ring oxidation states. This represents a rational marriage of the broad organometallic and phthalocyanine fields, opening the door for the exploration of this classical, stable, redox-active macrocycle as an ancillary ligand in metal–carbon chemistry.
Applications of Microwave in Organic Synthesis: An Improved One-step Synthesis of Metallophthalocyanines and a New Modified Microwave Oven for Dry Reactions
作者:Didier Villemin、Mohamed Hammadi、Messaoud Hachemi、Nathalie Bar
DOI:10.3390/61000831
日期:——
Metallophthalocyanine complexes are obtained quickly and efficiently by the reaction of phthalodinitrile with hydrated metallic salts without solvent and under microwaveirradiation. The use of a modified commercial microwave oven to perform this type of reactions under dry conditions is described. Metallophthalocyanines and metallododecachlorophthalocyanines of some divalent metals can be also obtained
A Rare μ-Hydroxo-Bridged Species. Synthesis, Structure, and Properties of μ-Hydroxo(tetraphenylporphyrinatomanganese(III))(phthalocyaninato(azido)chromium(III)), [(TPP)Mn−O(H)−CrPc(N<sub>3</sub>)]
作者:Maria Pia Donzello、Laura Bartolino、Claudio Ercolani、Corrado Rizzoli
DOI:10.1021/ic060574q
日期:2006.8.1
A novel ditetrapyrrolic, heteroleptic, and heterometallic (Mn-Cr) mu-hydroxo-bridged complex has been prepared, and its structural and general properties have been studied. The species mu-hydroxo(tetraphenylporphyrin-atomanganese( III))(phthalocyaninato(azido) chromium(III)), [(TPP)Mn-O(H)-CrPc(N-3)], isolated as a chloronaphthalene (CINP) solvate, has been structurally characterized by single-crystal X-ray work. The two (TPP) Mn and CrPc(N-3) fragments are held together by the bridging mu-hydroxo ion with long Mn-O [1.993(5) angstrom] and Cr-O [1.976(5) angstrom] bond distances and a Mn-O(H)-Cr angle of 163.7(3). The five-coordinate Mn center in the (TPP) Mn fragment is displaced from the TPP rigorously planar central N-4 core by 0.128 angstrom, and the environment is typical of a Mn-III high-spin site. The six-coordinate CrIII in the CrPc(N-3) moiety lies practically in the plane of the phthalocyanine macrocycle (displacement toward the azido group: 0.054 angstrom). The average Mn-N-pyr and Cr-N-pyr bond distances are 2.011(6) and 1.982(6) angstrom, respectively, and the Mn-Cr bond distance is 3.929(2) angstrom. The porphyrin and phthalocyanine rings are in an almost eclipsed position [5.16(2)], and the mean planes of the two macrocycles form a dihedral angle of 5.79(4). Crystal data for [(TPP) Mn-O(H)-CrPc(N-3)](.)2CINP, C(76)H(45)CrMnN(15)O(.)2C(10)H(7)Cl: a = 16.645(3) angstrom, b = 17.692(4) angstrom, c = 25.828(5) angstrom, alpha = 90 degrees, beta = 98.79(3)degrees, gamma = 90 degrees, space group P2(1)/c (No. 14), V = 7517(3) angstrom(3), Z = 4, R1 = 0.086, and wR2 = 0.267. IR and UV-vis-near-IR spectral and room temperature magnetic susceptibility data of the [Mn-Cr] species are also presented.