Ta2Cl5

Ta2Cl5 is a thermodynamically stable, semimetallic tantalum chloride compound known for its structural diversity.

ClTa
Crystal structure of Ta2Cl5
Ground-state structure · Materials Project
Overview

About Ta2Cl5

Ta2Cl5 is a tantalum-based inorganic compound characterized by its near-zero-gap electronic structure, placing it in the semimetallic regime. As a thermodynamically stable phase located on the convex hull, it represents a robust configuration of tantalum and chlorine atoms that maintains structural integrity under standard conditions. Its electronic properties make it an intriguing subject for research into low-dimensional conductors and specialized electronic materials. The compound exhibits significant structural diversity, with multiple reported configurations that highlight the complexity of tantalum-halogen bonding chemistry. These variations in atomic arrangement suggest a high degree of tunability, which is essential for developing advanced functional materials in solid-state chemistry.

At a glance

Key Properties

Cross-validated computational properties for Ta2Cl5, aggregated across 2 databases.

Band Gap

0.06 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
1 DFT source

Structures

13
2 databases, 4 space groups
Uses

Applications

Where Ta2Cl5 is used.

Solid-state chemistry researchPrecursor for tantalum-based materialsElectronic material studies
Reference

Frequently Asked Questions

Common questions about Ta2Cl5, answered from cross-validated data.

What is Ta2Cl5?

Ta2Cl5 is a thermodynamically stable, semimetallic tantalum chloride compound known for its structural diversity.

More questions
What is Ta2Cl5 used for?
Ta2Cl5 is used in solid-state chemistry research, precursor for tantalum-based materials, and electronic material studies.
What is the band gap of Ta2Cl5?
Ta2Cl5 has a DFT-computed band gap of 0.06 eV across 13 reported structures.
Is Ta2Cl5 a metal, semiconductor, or insulator?
With a near-zero band gap it behaves as a (semi)metal.
Is Ta2Cl5 thermodynamically stable?
Yes — Ta2Cl5 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Ta2Cl5 are known?
13 structures of Ta2Cl5 are reported across 2 databases, spanning 4 distinct space groups.
What elements does Ta2Cl5 contain?
Ta2Cl5 contains Cl and Ta (2 elements).
Where does the data for Ta2Cl5 come from?
Ta2Cl5 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a distinct tantalum halide, Ta2Cl5 occupies a unique position in the landscape of transition metal chlorides. While many related halides act as wide-gap insulators or semiconductors, this compound is notable for its semimetallic nature, which sets it apart from more conventional insulating tantalum salts.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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