High electrical conductivity in Ni₃(2,3,6,7,10,11-hexaiminotriphenylene)₂, a semiconducting metal-organic graphene analogue.

  title={High electrical conductivity in Ni₃(2,3,6,7,10,11-hexaiminotriphenylene)₂, a semiconducting metal-organic graphene analogue.},
  author={Dennis Sheberla and Lei Sun and Martin A Blood-Forsythe and S{\"u}leyman Er and Casey R. Wade and Carl K. Brozek and Al{\'a}n Aspuru-Guzik and Mircea Dincǎ},
  journal={Journal of the American Chemical Society},
  volume={136 25},
Reaction of 2,3,6,7,10,11-hexaaminotriphenylene with Ni(2+) in aqueous NH3 solution under aerobic conditions produces Ni3(HITP)2 (HITP = 2,3,6,7,10,11-hexaiminotriphenylene), a new two-dimensional metal-organic framework (MOF). The new material can be isolated as a highly conductive black powder or dark blue-violet films. Two-probe and van der Pauw electrical measurements reveal bulk (pellet) and surface (film) conductivity values of 2 and 40 S·cm(-1), respectively, both records for MOFs and… 

Figures from this paper

Coupling of a conductive Ni3(2,3,6,7,10,11-hexaiminotriphenylene)2 metal-organic framework with silicon nanoparticles for use in high-capacity lithium-ion batteries.

The coupling of conductive Ni3(HITP)2 with Si is a potential way to make an anode for high-performance LIBs and excellent electrochemical performance results from the open channels of the MOF network.

Synthesis and Electric Properties of a Two-Dimensional Metal-Organic Framework Based on Phthalocyanine.

The obtained LIB performance mainly originates from the electrically conductive and redox-active framework of the phthalocyanine-based 2D MOF and its hierarchical microporous/mesoporous structure.

Cu₃(hexaiminotriphenylene)₂: an electrically conductive 2D metal-organic framework for chemiresistive sensing.

Comparison with the isostructural 2D MOF Ni3(HITP)2 shows that the copper sites are critical for ammonia sensing, indicating that rational design/synthesis can be used to tune the functional properties of conductive MOFs.

Redox ladder of Ni3 complexes with closed-shell, mono-, and diradical triphenylene units: molecular models for conductive 2D MOFs.

The isolation and characterization of a series of trinickel complexes with 2,3,6,7,10,11-hexaoxotriphenylene, [(Me 3 TPANi) 3 (HOTP)](BF 4) n serve as possible inspiration for the construction of extended materials with targeted electric and magnetic properties.

Metal-organic Kagome lattices M3(2,3,6,7,10,11-hexaiminotriphenylene)2 (M = Ni and Cu): from semiconducting to metallic by metal substitution.

A theoretical study offers new insights into tunability of electronic properties for the 2D metal-organic frameworks (MOFs) using a new Kagome lattice designed by substituting the coordination of Ni by Cu.

Crystallinity-Dependent Thermoelectric Properties of a Two-Dimensional Coordination Polymer: Ni3(2,3,6,7,10,11-hexaiminotriphenylene)2

The pellets of Ni3(2,3,6,7,10,11-hexaiminotriphenylene)2, which has recently been developed, show n-type thermoelectric transport, dependent on crystallinity, which provides systematic feedback to the guideline for high-performance molecular thermoeLECTric materials.

Nickel(II) and Copper(II) Coordination Polymers Derived from 1,2,4,5-Tetraaminobenzene for Lithium-Ion Batteries

Highly conductive electrochemically active materials are required for developing a new generation of ultrafast lithium-ion batteries (LIBs). Recently, a novel family of transition metal coordination

Photoresponsive 2D polymeric Langmuir–Blodgett films of 2,3,6,7,10,11-hexaiminotriphenylene

2,3,6,7,10,11-Hexaiminotriphenylene (HATP) was connected via aerobic oxidative coupling to form large-area polymeric 2D films using the Langmuir–Blodgett technique. These 2D polymers exhibited

Dimensionality Modulates Electrical Conductivity in Compositionally Constant One-, Two-, and Three-Dimensional Frameworks.

We reveal here the construction of Ni-based metal-organic frameworks (MOFs) and conjugated coordination polymers (CCPs) with different structural dimensionalities, including closely π-stacked 1D

Continuous Electrical Conductivity Variation in M3(hexaiminotriphenylene)2 (M = Co, Ni, Cu) MOF Alloys.

The activation energy of (CoxNi3-x)(HITP)2 alloys scales inversely with increasing the Ni percentage, confirming thermally-activated bulk transport.



Conductivity, Doping, and Redox Chemistry of a Microporous Dithiolene-Based Metal−Organic Framework

The new microporous metal−organic framework Cu[Ni(pdt)2] (pdt2− = pyrazine-2,3-dithiolate) is demonstrated to have an optical bandgap, p-type semiconductivity, and redox activity. The compound can be

Molecular and electronic structures of bis-(o-diiminobenzosemiquinonato)metal(II) complexes (Ni, Pd, Pt), their monocations and -anions, and of dimeric dications containing weak metal-metal bonds.

Cyclic voltammetry established that the complete electron-transfer series consisting of a dianion, monoanion, neutral complex, a mono- and a dication exists.

Porous, conductive metal-triazolates and their structural elucidation by the charge-flipping method.

A new family of porous crystals was prepared by combining 1H-1,2,3-triazole and divalent metal ions to give six isostructural metal-Triazolates (termed MET-1 to 6), which have permanent porosity and display surface areas as high as some of the most porous zeolites, with one member of this family exhibiting significant electrical conductivity.

Atomically thin MoS₂: a new direct-gap semiconductor.

The electronic properties of ultrathin crystals of molybdenum disulfide consisting of N=1,2,…,6 S-Mo-S monolayers have been investigated by optical spectroscopy and the effect of quantum confinement on the material's electronic structure is traced.

Highly conducting two-dimensional copper(I) 4-hydroxythiophenolate network.

An unprecedented 2-D Cu-S network is constructed by self-assembly coordination between Cu(I) and 4-hydroxythiophenol and its structure was determined by using powder X-ray diffraction data. The

The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets.

This Review describes how the tunable electronic structure of TMDs makes them attractive for a variety of applications, as well as electrically active materials in opto-electronics.

π-Conjugated nickel bis(dithiolene) complex nanosheet.

A π-conjugated nanosheet comprising planar nickel bis(dithiolene) complexes was synthesized by a bottom-up method and found that the crystalline portion of the bulk material comprised a staggered stack of nanosheets.

Single-layer MoS2 transistors.

Because monolayer MoS(2) has a direct bandgap, it can be used to construct interband tunnel FETs, which offer lower power consumption than classical transistors, and could also complement graphene in applications that require thin transparent semiconductors, such as optoelectronics and energy harvesting.

Thiophene-based covalent organic frameworks

We report the synthesis and characterization of covalent organic frameworks (COFs) incorporating thiophene-based building blocks. We show that these are amenable to reticular synthesis, and that bent