Naphthalocyanine ligands

Figure 10 Synthesis of axially substituted ruthenium(II) 2,3-naphthalocyanines. Compounds with a variety of hydrophilic axial ligands have been characterized.158...

The synthesis of [RuL] where H2L = 2,3-naphthalocyanine has been reported. Reactions with suitable bridging ligands lead to oligomers, electrical conductivity data for which have been compared with those of related compounds. The tetrakis(tert-butyl) derivative [Ru ( BU4L)] has been prepared by the thermal decomposition of the [Ru( Bu4L)(Lax)2] (Lax = NH3, 3-Clpy). ... 

The present article reviews the photochemical deactivation modes and properties of electronically excited metallotetrapyrroles. Of the wide variety of complexes possessing a tetrapyrrole ligand and their highly structured systems, the subject of this survey is mainly synthetic complexes of porphyrins, chlorins, corrins, phthalocyanines, and naphthalocyanines. All known types of photochemical reactions of excited metallotetrapyrroles are classified. As criteria for the classification, both the nature of the primary photochemical step and the net overall chemical change, are taken. Each of the classes is exemplified by several recent results, and discussed. The data on exciplex and excimer formation processes involving excited metallotetrapyrroles are included. Various branches of practical utilization of the photochemical and photophysical properties of tetrapyrrole complexes are shown. Motives for further development and perspectives in photochemistry of metallotetrapyrroles are evaluated. 

The self-assembled diad formed by axial coordination of zinc naphthalocyanine (ZnNc) and fulleropyrrolidine bearing a coordinating imidazole ligand (Qolm) is a good example of a supramolecular system undergoing photoinduced electron... 

One of the most relevant evidences of a relatively significant interaction between the macrocycle complex and the metal surface is the appearance of a vibrational band. This kind of metal-ligand bands is better observed in the Raman spectrum below 500cm . Bands corresponding to the adsorbate-substrate interaction were observed in azabipiridyl, phthalocyanines, naphthalocyanines and... 

Formally, tetravalent cerium is long known to form stable sandwich complexes with tetrapyrrole-type macrocyclic ligands such as porphyrines, phthalocyanines, and 2,3,-naphthalocyanines (Scheme 12). For the rare earth sandwich complex series, virtually all the neutral complexes can be formulated as Ln° (ring-1 ) (ring-2 ), in which a trivalent rare earth metal center is sandwiched between a... 

A metal ion M as part of a polymer chain is surrounded by a multivalent ligand. As a result, stacked arrangements 107 are realized with a face-to-face orientation of the ligands. Porphyrins, phthalocyanines, naphthalocyanines, etioporphyrin, tetraaza[14]annulene, hemiporphyrazines, and related macrocycles as ligands have been most intensively investigated. Because several reviews summarize preparations and properties (conductivity, photoconductivity, NLO, electroluminescent detectors) of these materials, only a short overview on these polymers is given [1,3,34,40,375-377]. Several years ago, unsubstituted macrocycles were employed as ligands. These polymers are much less soluble. Recently, the use of substituted macrocycles has led to soluble polymers which are analytically easier to characterize. 

---