CrIII-Phthalocyaninate: Darstellung, Eigenschaften und Kristallstruktur vonl-Bis(triphenylphosphin)iminium-trans-di(nitrito(O))phthalocyaninato(2-)-chromat(III)

Synthesis and Crystal Structure of 2,4,6-Triphenylpyrylium Acetonato(C)chlorophthalocyaninato(2–)iridate(III) Monohydrate

Phthalocyaninato(2–)iridate(I) is oxidized by air in acetone to form acetonato(C)chlorophthalocyaninato(2–)iridate(III) in the presence of chloride. The anion is isolated as its 2,4,6-triphenylpyrylium salt, ( TPPy )[ Ir ( aC )( Cl ) Pc 2−]. Its monohydrate crystallizes in the monoclinic space group P1n1 (#7). The cell parameters are a = 12.452(3) Å, b = 12.339(3) Å, c = 15.352(4) Å, β = 100.75(2) °, Z = 2. Hexa-coordinated Ir is located slightly out of the centre (ct) of the Pc core (d( Ir-ct ) = 0.02 Å) and directed towards the acetonato C atom. It coordinates four isoindole N atoms ( N iso ) together with a Cl atom and a C-bonded acetonate in a mutual trans position. The average Ir – N iso distance is 1.966 Å;, the Ir – Cl distance is 2.501(5) Å; and the Ir –C distance is 2.11(2) Å.

A Rare μ-Hydroxo-Bridged Species. Synthesis, Structure, and Properties of μ-Hydroxo(tetraphenylporphyrinatomanganese(III))(phthalocyaninato(azido)chromium(III)), [(TPP)Mn−O(H)−CrPc(N3)]

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(tetraphenylporphyrinatomanganese(III))(phthalocyaninato(azido)chromium(III)), [(TPP)Mn-O(H)-CrPc(N3)], isolated as a chloronaphthalene (ClNP) solvate, has been structurally characterized by single-crystal X-ray work. The two (TPP)Mn and CrPc(N3) fragments are held together by the bridging mu-hydroxo ion with long Mn-O [1.993(5) A] and Cr-O [1.976(5) A] bond distances and a Mn-O(H)-Cr angle of 163.7(3) degrees . The five-coordinate Mn center in the (TPP)Mn fragment is displaced from the TPP rigorously planar central N4 core by 0.128 A, and the environment is typical of a Mn(III) high-spin site. The six-coordinate Cr(III) in the CrPc(N3) moiety lies practically in the plane of the phthalocyanine macrocycle (displacement toward the azido group: 0.054 A). The average Mn-N(pyr) and Cr-N(pyr) bond distances are 2.011(6) and 1.982(6) A, respectively, and the Mn-Cr bond distance is 3.929(2) A. The porphyrin and phthalocyanine rings are in an almost eclipsed position [5.16(2) degrees ], and the mean planes of the two macrocycles form a dihedral angle of 5.79(4) degrees. Crystal data for [(TPP)Mn-O(H)-CrPc(N3)].2ClNP, C76H45CrMnN15O.2C10H7Cl: a = 16.645(3) A, b = 17.692(4) A, c = 25.828(5) A, alpha = 90 degrees , beta = 98.79(3) degrees , gamma = 90 degrees , space group P2(1)/c (No. 14), V = 7517(3) A(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.