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Polyethers and/or thioethers contg. organoiron moities in either the backbone or the side chain were prepd. under mild reaction conditions. Polysiloxanes contg. arene cyclopentadienyliron or ferrocene moieties were also prepd. and their morphol. thermal and spectroscopic characterizations were examd...
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Ferrocene-based monomers were prepd. via the reaction of cationic chloroarene cyclopentadienyliron complex cations with 1,1'-ferrocene dicarbonyl chloride. These monomers were then reacted with O-, S- and N- contg. dinucleophiles to give the polymeric materials with neutral iron moieties in the back...
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Isomeric dichlorobenzene complexes of ironcyclopentadienyl and pentamethylcyclopentadienyl- ruthenium were used to facilitate nucleophilic arom. substitution (SNAr) reactions with a variety of O, S, and N contg. nucleophiles. Oligomeric and polymeric systems were achieved by variation in the ratio o...
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Our research interests have been focused on the design of new monomeric and polymeric materials using organoiron complexes as precursors. Cyclopentadienyliron chloroarene complexes were used to mediate the synthesis of sulfide contg. compds. These compds. were designed with various arom. and aliph. ...
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A review. This chapter discusses the synthesis, structures, selected properties, and uses of polymers that have metal-metal bonds incorporated into their backbone chains. These materials are of interest for a no. of reasons. The primary reason is the promise of new and unusual properties. In particu...
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A no. of substituted arene cyclopentadienyliron complexes were reacted with phenolphthalein in the presence of potassium carbonate using DMF as a solvent to prep. di-iron complexes as shown in the following scheme. Subsequent reaction with n-butylamine resulted in an unprecedented cleavage of the et...
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Arom. ether complexes of cyclopentadienyliron contg. pendent carboxylic acid groups were reacted with methacrylate and styrene functionalized mols. These diiron complexes were subsequently polymd. in the presence of AIBN to give the corresponding polymethacrylates and polystyrenes with organoiron fu...
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Nucleophilic arom. substitution of p-dichlorobenzene complexed to a cyclopentadienyliron cation with oxygen and sulfur nucleophiles led to the formation of polymers with pendent iron moieties as shown in the following scheme. These polymers were sol. in various org. solvents. Photolytic demetallatio...
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A review on rigid-rod transition metal polyyne polymers. [on SciFinder(R)]
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A review. Metallodendrimers can be assembled in a no. of ways (covalent, ionic, hydrogen-bonding, coordination), wherein the metal plays key roles: sensor, catalyst, electronic, magnetic, or optical device. The mol. engineering pertaining to the metallodendritic design is relevant to multiple aspect...
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The introduction of cyano groups into arom. sulfones is of interest in light of the potential uses of these materials as monomeric units in the synthesis of engineering thermoplastics. Organoiron complexes (I) were initially prepd. by reaction of p-dichlorobenzenecyclopentadienyliron with various di...
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A no. of sol. organometallic polymers with pendent cyclopentadienyliron and pentamethylcyclopentadienylruthenium moieties were prepd. under mild exptl. conditions. These polyarom. materials contained ether, thioether and amine bridges. The following figure represents one of the organometallic polyme...
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A review is presented on the use of metal coordination polymers for nanofabrication. Nanostructures of metal nanoparticles and semiconducting metal oxides made from polymers coordinated to the precursors are presented. [on SciFinder(R)]
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Interest in organometallic polymers is due to their applications as chem. sensors, electrocatalysts, modified electrodes and photo-active mol. devices. The incorporation of organometallic moieties into the backbone of org. mols. has modified the optical, magnetic and thermal properties of these syst...
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Recently, we have focused on the synthesis of monomeric and polymeric cationic organoiron functionalized with azo dyes. In this presentation we will describe the synthesis of novel polyferrocene incorporating azo dyes and pendent cyclopentadienyliron cations. Condensation of 1,1'-ferrocenedicar...
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Photolytic demetallation of cyclopentadienyliron complexes was investigated. Effects of solvent nucleophilicity, counter anion, wavelength, and nature of the arene were studied. Initial results indicate a dependence on the wavelength of the light source as well as the duration of photolysis, with de...
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A no. of routes to the synthesis of dendrimeric materials coordinated to the cationic cyclopentadienyliron moiety were explored. As an example, reaction of dichloroarene cyclopentadienyliron complexes with a triphenolic compd. resulted in the formation of a trimetallic ether complex contg. terminal ...
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Polyarom. ether/imines with pendent cationic cyclopentadienyliron moieties were prepd. using two different synthetic strategies. The first methodol. involved the reaction of diiron complexes contg. terminal complexed chloroarenes with diphenolic compds. In this strategy, the imine functionality was ...
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A review presents the redox properties and redox-based functionalities of multi-nuclear metal complex systems such as conjugated linear polymers of oligo- and polyferrocenylene derivs. and organometallic π-conjugated conducting polymers made of metallacyles. [on SciFinder(R)]
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The topic of metal-contg. polymers is reviewed with special emphasis on the need for polymeric materials for the 21st century and the role that metal and metalloid-contg. polymers will fill. Also emphasized is the wide variety of potential polymers including varying the metal, oxidn. state of the me...
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The synthesis of arom. ether functionalized norbornene monomers was accomplished using chloroarene cyclopentadienyliron complexes. Monomers contg. aliph. ether linkages or bulky arom. ether groups within their structures were synthesized. These monomers were subjected to ring-opening metathesis poly...
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Displacement of the terminal chloro groups of the diiron arene complexes with 1-naphthol led to the formation of the corresponding complex with terminal naphthoxy groups. Photolytic demetallation of these complexes produced the monomeric blocks in good yields. Scholl polymn. was implemented leading ...
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Over the past few decades, we have seen a growing interest in the development of various classes of metal-contg. polymers. While polymers are traditionally carbon-based materials that contain only a few other elements, organometallic polymers could incorporate almost all the other elements of the pe...
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A review. The unique features of dendritic architecture and the rich chem. of organo-transition metal complexes were combined in metallodendrimers to create the potential for a wide range of utilitarian applications. Because dendrimers allow scientists to probe the twilight zone between homogeneous ...
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A review. This chapter reviews research published on conjugated metal-contg. polymers from late 1998 to mid-2005. It includes polymers where the metal is incorporated into the backbone or the side chain of a conjugated polymer. Kingsborough and Swager wrote an excellent review of the field up to lat...