Polyhedral boron clusters in materials science

Dash, Barsha; Satapathy, Rashmirekha; Maguire, John A.; Hosmane, Narayan S.

doi:10.1039/c1nj20228f

Cited by 181 publications

(81 citation statements)

References 179 publications

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“…As chemical and physical behaviour is often a function of structure, then the boron hydrides have, with their unique polyhedral molecular geometries, large potential for novel properties. This is indeed the case, and in recent times boron hydrides-or boranes as these compounds are more commonly referred to-and their derivatives are proving promising candidates for application in medicinal fields 15 , microelectronics 16 , reversible capture of small molecules 17 , catalysis 18 , in the modification of surfaces 19 and as enhancers of the fluorescent properties of various luminescent organic polymers or fluorophores 20 .…”

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confidence: 99%

A borane laser

et al. 2015

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Emission from electronically excited species forms the basis for an important class of light sources-lasers. So far, commercially available solution-processed blue-emitting laser materials are based on organic compounds or semiconductor nanocrystals that have significant limitations: either low solubility, low chemical-and/or photo-stability and/or uncompetitive prices. Here we report a novel and competitive alternative to these existing laser materials that is based on boron hydrides, inorganic cluster compounds with a rich and diverse chemistry. We demonstrate that solutions of the borane anti-B 18 H 22 show, under pulsed excitation, blue laser emission at 406 nm with an efficiency (ratio of output/input energies) of 9.5%, and a photostability superior to many of the commercially available state-of-the-art blue laser dyes. This demonstration opens the doors for the development of a whole new class of laser materials based on a previously untapped resource for laser technology-the boranes.

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A borane laser

et al. 2015

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“…However, there are some limitations of using symmetrical phthalocyanines. Hence, recently, researchers have been interested in low symmetrical phthalocyanines which enrich the specifications and make them usable in a more controlled manner [11e15].In addition, the boron containing cluster systems have recently become an extensively studied class of compounds due to their three-dimensional structure: aromaticity, high chemical and thermal stability and incorporation into various organic molecules as substituents [16].Boron containing cluster systems such as carborane, cobalt bis dicarballide and dodecaborate anion are used in substitution of phthalocyanines and these phthalocyanine derivatives are potential sentisizers for photodynamic therapy (PDT) and boron neutron capture therapy (BNCT) [17e24]. Furthermore, substitution of phthalocyanines with o-carborane group enhances the properties of the compound as it displays a rich chemistry.…”

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A new unsymmetrical phthalocyanine with a single o-carborane substituent

Özgür

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Gül

et al. 2015

Journal of Organometallic Chemistry

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“…In this article, the interface between icosahedral carboranes and coordination polymers including metalorganic frameworks, MOFs [2], is reviewed. The roles of carborane clusters in 1D-coordination polymers [3] and 2D-and 3D-networks varies from their 2 capture as guest molecules, to their incorporation as weakly coordinating anions, and to their functionalizion so they can act as linkers in the backbones of coordination polymers and nets.…”

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Carboranes as guests, counterions and linkers in coordination polymers and networks

Housecroft

2015

Journal of Organometallic Chemistry

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review is dedicated to Russ Grimes, a true pioneer in carborane (carborane) cluster chemistry, on the occasion of his 80th birthday. AbstractCarborane clusters play a variety of roles in the assembly of 1D-coordination polymers and 2D-and 3D-networks. In this review, comments on coordination polymers in which neutral carborane guests are accommodated are followed by discussion of the incorporation of anionic carboranes into coordination polymers and networks, with critical comments concerning the classification of some 'coordination polymers' within the 2013 IUPAC guidelines.Functionalization of carborane clusters with carboxylato, phosphino or 2,2':6',2''-terpyridinyl domains provides potential for their incorporation as covalently bound linkers into the backbones of coordination polymers and frameworks; in the case of phosphino-functionalized clusters, the carborane clusters are located on the periphery of the 1D-polymer chains.

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Polyhedral boron clusters in materials science

Cited by 181 publications

References 179 publications

A borane laser

A borane laser

A new unsymmetrical phthalocyanine with a single o-carborane substituent

Carboranes as guests, counterions and linkers in coordination polymers and networks

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