Synthesis, Structure, and UV-Vis Characterization of Antimony(III) Phthalocyanine: [(SbPc)(SbI)(SbBr)].

A new antimony(III)-phthalocyanine complex with the formula of [(SbPc)(SbI)(SbBr)] has been obtained in the reaction of pure antimony powder with phthalonitrile under the oxidation conditions by iodine monobromide vapors. The complex crystallizes in the centrosymmetric space group of the triclinic system. Both independent (SbPc) units exhibit non-planar conformation, since the Sb(III) is larger than the equilibrium cavity size of the ring and cannot be accommodated without its expansion; thus, the metal protrudes out of the cavity, forming a saucer shape.

2-(3-pyridyl)-1,3,8-triazanaphthalene, a product of the catalytic transformation of 3-cyanopyridine.

The title compound, C(12)H(8)N(4), was obtained by thermal treatment of 3-cyanopyridine in the presence of magnesium phthalocyanine as catalyst. The X-ray structure analysis, in direct contrast to molecular orbital calculations corresponding to the gas phase, shows the molecule to be non-planar in the solid state, with an interplanar angle between the pyridine and 1,3,8-triazanaphthalene rings of 13.33 (9) degrees.

Two isomorphous complexes: dichloro[phthalocyaninato(2-)]tin(IV) and dichloro[phthalocyaninato(2-)]germanium(IV).

Isomorphous triclinic forms of dichloro[phthalocyaninato(2-)]tin(IV), [Sn(C(32)H(16)N(8))Cl(2)], and dichloro[phthalocyaninato(2-)]germanium(IV), [Sn(C(32)H(16)N(8))Cl(2)], and a monoclinic form of the latter have been obtained from the reaction of pure tin and germanium powder, respectively, with phthalonitrile under a stream of ICl vapour. All three crystal structures consist of centrosymmetric [SnPcCl(2)] and [GePcCl(2)] [Pc is phthalocyaninate(2-)] molecules, which are separated but interacting. In the triclinic forms (Sn and Ge), the Pc macrocycles are not staggered but slipped, and in the monoclinic form (Ge), the molecules are additionally inclined.

Bis([phthalocyaninato(2-)]arsenic(III)) tetradecaiodotetra-arsenic(III).

Crystals of the novel title arsenic(III) phthalocyanine complex, [As(C(32)H(16)N(8))](2)[As(4)I(14)] or [(AsPc)(+)](2).[As(4)I(14)](2-), where Pc is phthalocyaninate(2-), have been obtained by the reaction of pure powdered As with phthalonitrile under a stream of iodine vapour at 493 K. The crystals are built up of separate but interacting [AsPc](+) cations and [As(4)I(12)](2-) anions.

Mixed-Valence, Disordered Structures and Characterization of Iodine-Doped Phthalocyanines: [YbPc(2)]I(2) and [(AsPc)(Pc)]I(2).

Crystals of C(64)H(32)N(16)YbI(2) and C(64)H(32)N(16)AsI(2) were grown directly in the reaction of ytterbium or arsenic powder with 1,2-dicyanobenzene under a stream of iodine at 200 degrees C. Both partially oxidized phthalocyanine complexes crystallize in the P4/mcc space group of the tetragonal system with one molecule per unit cell, with the cell dimensions a = 13.927(2) Å, c = 6.