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Pentadiamond-like Metallic Hard Carbon Nitride

https://doi.org/10.1021/acs.jpcc.0c07648
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1 of 47 checkable references need attention · checked 2026-07-24

At the dated check, the references listed below either did not resolve in Crossref or DataCite, or carried a retraction notice. Each one is shown with the registry record that put it there.

2 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.

References needing attention

marked retracted — notice via Crossref, record curated by Retraction Watch10.1103/PhysRevLett.125.016001
Pentadiamond: A Hard Carbon Allotrope of a Pentagonal Network of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>sp</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>sp</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math> C Atoms
The 46 checked references that resolve
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Prediction of New Low Compressibility Solids
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Low-Compressibility Carbon Nitrides
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Predicting hardness of dense C3N4 polymorphs
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Interesting Physical Properties of the New Spinel Phase of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Si</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">N</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">N</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>
resolves10.1016/j.physb.2007.10.259
First-principles study on hardness of five polymorphs of C3N4
resolves10.3390/ma9060427
Two Novel C3N4 Phases: Structural, Mechanical and Electronic Properties
resolves10.1080/095008397179714
alpha beta Experimental evidence for alpha - and beta -phases of pure crystalline C3N4 in films deposited on nickel substrates
resolves10.1126/science.261.5119.334
Experimental Realization of the Covalent Solid Carbon Nitride
resolves10.1103/PhysRevB.49.5034
Observation of crystalline<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">N</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>
resolves10.1088/0953-8984/15/2/330
Synthesis of beta carbon nitride nanosized crystal through mechanochemical reaction
resolves10.1088/1742-6596/121/6/062002
Synthesis of new cubic C<sub>3</sub>N<sub>4</sub>and diamond-like BC<sub>3</sub>phases under high pressure and high temperature
resolves10.1016/j.ssc.2005.10.022
A new carbon nitride synthesized by shock compression of organic precursors
resolves10.1016/0038-1098(95)00458-0
On the structure and composition of carbon nitride
resolves10.1103/PhysRevB.80.174111
Carbon nitride:<i>Ab initio</i>investigation of carbon-rich phases
resolves10.1021/jp409152t
A Novel Superhard Tetragonal Carbon Mononitride
resolves10.1103/PhysRevB.78.235431
Superhard semiconducting<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mtext>C</mml:mtext><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mtext>N</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>compounds predicted via first-principles calculations
resolves10.1016/j.physb.2012.03.015
Mechanical properties and hardness of new carbon-rich superhard C11N4 from first-principles investigations
resolves10.3390/ma9100840
Cubic C3N: A New Superhard Phase of Carbon-Rich Nitride
resolves10.1088/1361-648X/aada2c
Ground-state structures, physical properties and phase diagram of carbon-rich nitride C <sub>5</sub> N
resolves10.1063/1.4765324
Polymorphic phases of sp3-hybridized superhard CN
resolves10.1063/1.3464479
Cubic gauche-CN: A superhard metallic compound predicted via first-principles calculations
resolves10.1515/zna-2015-0270
A New Superhard Phase of C<sub>3</sub>N<sub>2</sub> Polymorphs
resolves10.1016/j.jallcom.2019.152324
Theoretical investigation on two novel high-pressure orthorhombic phases of superhard C3N2
resolves10.1021/acs.jpcc.5b10978
Prediction of a Superhard Carbon-Rich C–N Compound Comparable to Diamond
resolves10.1021/acs.chemmater.6b02593
Synthesis of Ultra-incompressible sp<sup>3</sup>-Hybridized Carbon Nitride with 1:1 Stoichiometry
resolves10.1007/BF00240806
Carbon nitride films prepared by ion implantation
resolves10.1039/B303210H
Formation of crystalline carbon nitride powder by a mild solvothermal method
resolves10.1088/0022-3727/37/6/015
Preparation and characterization of electrochemically deposited carbon nitride films on silicon substrate
resolves10.1039/A707214G
Preparation of carbon nitride C2N by shock-wave compression of poly(aminomethineimine)
resolves10.1039/A804137G
Attempted preparation of diamond-like carbon nitride by explosive shock compression of poly(methineimine)
resolves10.1103/PhysRevLett.125.079901
Retraction: Pentadiamond: A Hard Carbon Allotrope of a Pentagonal Network of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>s</mml:mi><mml:msup><mml:mi>p</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>s</mml:mi><mml:msup><mml:mi>p</mml:mi><mml:mn>3</mml:mn></mml:msup></mml:math> C Atoms [Phys. Rev. Lett. <b>125</b> , 016001 (2020)]
resolves10.1103/PhysRevLett.77.3865
Generalized Gradient Approximation Made Simple
resolves10.1524/zkri.220.5.567.65075
First principles methods using CASTEP
resolves10.1103/PhysRevB.41.7892
Soft self-consistent pseudopotentials in a generalized eigenvalue formalism
resolves10.1103/PhysRevB.43.6796
Implementation of ultrasoft pseudopotentials in<i>ab initio</i>molecular dynamics
resolves10.1103/PhysRevB.13.5188
Special points for Brillouin-zone integrations
resolves10.1016/j.commatsci.2016.10.015
Band structure diagram paths based on crystallography
resolves10.1103/PhysRevB.73.155114
Variational density-functional perturbation theory for dielectrics and lattice dynamics
resolves10.1107/S0567740874004067
Electron diffraction and the structure of α-N<sub>2</sub>
resolves10.1017/S0305004100017138
On the stability of crystal lattices. I
resolves10.1103/PhysRevB.90.224104
Necessary and sufficient elastic stability conditions in various crystal systems
resolves10.1103/PhysRevLett.103.186404
Theory of Spin-Conserving Excitation of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>N</mml:mi><mml:mo>−</mml:mo><mml:msup><mml:mi>V</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>Center in Diamond
resolves10.1103/PhysRevB.11.3139
Brillouin scattering in diamond
resolves10.1088/0370-1298/65/5/307
The Elastic Behaviour of a Crystalline Aggregate
resolves10.1016/j.ijrmhm.2012.02.021
Microscopic theory of hardness and design of novel superhard crystals
resolves10.1016/j.intermet.2011.03.026
Modeling hardness of polycrystalline materials and bulk metallic glasses
The 2 references without a DOI — listed, not checked
no DOI — not checkedDynamical theory of crystal lattices
no DOI — not checkedref44/cit44
What this badge says. CiteStamped means the CHECKABLE references of this work were clean at the dated check: each resolved to a known work in a public registry, and none carried a retraction notice at that time. It says nothing about the quality, findings, or importance of the work itself, and nothing about references deposited without a DOI.

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