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Related Experiment Video

Updated: Mar 25, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates

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Published on: February 15, 2016

A 14-vertex bud-shaped [(Cp*Ti)₂B₁₂H₁₈] cluster.

Subhash Bairagi¹, Debipada Chatterjee¹, Deepak Kumar Patel¹

¹Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India. sghosh@iitm.ac.in.

Dalton Transactions (Cambridge, England : 2003)

|March 24, 2026

Summary

This summary is machine-generated.

Two novel titanaborane clusters were synthesized and characterized. Cluster 1, a 14-vertex macropolyhedral titanaborane, exhibits unique structural features and does not adhere to established cluster counting rules.

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Area of Science:

Organometallic Chemistry
Boron Chemistry
Coordination Chemistry

Background:

Titanaboranes are organometallic compounds containing titanium and boron.
Macropolyhedral clusters represent complex, fused boron cage structures.
Understanding cluster fusion rules is key to predicting and synthesizing novel boron cage compounds.

Purpose of the Study:

To synthesize and structurally characterize novel macropolyhedral titanaboranes.
To investigate the structural motifs and bonding in these complex clusters.
To explore the applicability of existing theoretical rules (Mingos, Jemmis) to these new structures.

Main Methods:

Synthesis of titanaborane clusters via chemical reactions.
Single-crystal X-ray diffraction for structural determination.
Spectroscopic and analytical techniques for characterization.

Main Results:

Synthesis and structural characterization of a 14-vertex titanaborane, [(Cp*Ti)2B12H18] (1).
Synthesis and isolation of a 17-vertex titanaborane, [(Cp*Ti)2(B15H20)(µ-SH)] (2).
Cluster 1 features fused arachno-subclusters with inter-subcluster B-B linkages, deviating from established fusion formalisms.

Conclusions:

The discovery of unusual titanaborane structures expands the known diversity of boron clusters.
Cluster 1's unique geometry and failure to follow established rules highlight limitations in current theoretical models.
Further research is needed to refine theoretical frameworks for predicting complex boron cluster structures.