Recent Advances in Crystalline Oxidopolyborate Complexes of d-Block or p-Block Metals: Structural Aspects, Syntheses, and Physical Properties.

Shu-Sheng Xin,Michael A Beckett,Chun-Yang Pan,Ming-Hua Zhou

doi:10.3390/molecules26133815

Shu-Sheng Xin, Michael A Beckett + Show 2 more

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https://doi.org/10.3390/molecules26133815

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Abstract

Crystalline materials containing hybrid inorganic–organic metal borates (complexes with oxidoborate ligands) display a variety of novel framework building blocks. The structural aspects of these hybrid metallaoxidoborates containing Cd(II), Co(II), Cu(II), Ga(III), In(III), Mn(II), Ni(II) or Zn(II) metal centers are discussed in this review. The review describes synthetic approaches to these hybrid materials, their physical properties, their spectroscopic properties and their potential applications.

Highlights

In borate chemistry (n.b. oxidoborate is the recommended IUPAC name for oxidized oxygen containing borates [1]) the boron centers are bound to oxygen atoms as sp2 hybridized triangular {BO3} (∆) or sp3 hybridized {BO4} tetrahedral (T) structural units [2,3,4]
These fundamental units can be aggregated, employing organic cations or transition-metal cations as templating agents [5], with condensation and oxygen atom corner sharing into larger oxidoborate clusters
Metal complexes often contain more than one ligand type and those that contain oxidoborate ligands and conventional organic ligands with typical donor atoms may be classified as inorganic–organic hybrid materials [8,9]

Summary

Introduction

In borate chemistry (n.b. oxidoborate is the recommended IUPAC name for oxidized oxygen containing borates [1]) the boron centers are bound to oxygen atoms as sp hybridized triangular {BO3} (∆) or sp hybridized {BO4} tetrahedral (T) structural units [2,3,4] These fundamental units can be aggregated, employing organic cations or transition-metal cations as templating agents [5], with condensation and oxygen atom corner sharing into larger oxidoborate clusters. This review is designed to be comprehensive within the defined topic and covers recently reported (twenty-first century) literature It reports on structural chemistry, synthetic methods, physical properties and possible applications and focusses on complexes containing oxidoborate ligands. N-donor from two different 1,4-dab ligands (forminngg a 1-D chain) and four O-donor atoms from two oxidoborate network ligands (Figure 1a)

Cd B

Findings

Conclusions