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Abbas AK, Kamona SMH, Ghazuan T, Hashim FS, Kamal HR, Abed HN, Zabibah RS, Wu J. Identification and sensing of hydrogen fluoride (HF) on aluminum phosphide (Al 24P 24) nanocage in both gas and water phases: electronic study via density-functional theory computations. J Mol Model 2023; 29:216. [PMID: 37368127 DOI: 10.1007/s00894-023-05617-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 06/07/2023] [Indexed: 06/28/2023]
Abstract
CONTEXT Hydrogen fluoride (HF) is extensively present in environmental and industrial pollutants. It may harm the health of humans and animals. This work evaluated the adsorption of an (HF)n linear chain (n = 1, 2, 3, and 4) onto an AlP nanocage through ab initio calculations for the evaluation of its performance in sensing and monitoring (HF)n within aqueous and gaseous media. METHODS The present work adopted density functional theory (DFT) at the 6-311 G (d, p) basis set to analyze (HF)n linear chain adsorption onto AlP nanocages with the B3LYP functional. This paper examined the adsorption energy, configuration optimization, work function, and charge transfer. In addition, the contributions of the HF linear chain size to electronic properties and adsorption energy were measured. The dimer form of HF on the surface of AlP nanocages was found to have the highest stability based on the adsorption energy values. Once (HF)n was adsorbed onto the nanocage, the HOMO-LUMO energy gap experienced a large reduction from 3.87 to 3.03 eV, enhancing electrical conductivity. In addition, AlP nanocages may serve in the sensing of (HF)n under multiple environmental pollutants.
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Affiliation(s)
- Ali Kareem Abbas
- Intelligent Medical Systems Department, Al-Mustaqbal University College, Hillah, Babylon, 51001, Iraq
| | | | - Tiba Ghazuan
- Medical Technical College, Al-Farahidi University, Baghdad, Iraq
| | - Furqan S Hashim
- Department of Medical Laboratories Technology, Al-Nisour University College, Baghdad, Iraq
| | - Hiba Rafid Kamal
- Department of Anesthesia Techniques, AlNoor University College, Nineveh, Iraq
| | - Hussein Najm Abed
- Department of Medical Laboratory Techniques, Altoosi University College, Najaf, Iraq
| | - Rahman S Zabibah
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Jianfu Wu
- Department of Chemistry, Molecular Logic Gate Laboratory, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.
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2
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Computational study of the effects of static electric field on the interaction of 5-Fluorouracil anti-cancer drug with pristine and Sc- and Ti-doped B12P12 nanocage as drug delivery. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02486-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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3
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Ganesan M, Sampathkumar S, Daniel J, Vedamanickam N, Paranthaman S. A DFT Study on the Potential Application of Graphene-Like Pure and Doped Boron Phosphide Monolayer in Li- and Na-Ion Batteries. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422010113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Janjua MRSA. Quantum design of transition metals decorated on boron phosphide inorganic nanocluster for Favipiravir adsorption: a possible treatment for COVID-19. NEW J CHEM 2022. [DOI: 10.1039/d1nj04697g] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a quantum drug delivery design of transition metals decorated on boron phosphide (B12P12) inorganic nanocage for favipiravir adsorption has been presented. Thus, these systems may facilitate us as COVID-19 therapy.
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5
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The influence of transition metal (Mn, Fe, Co, Cu) doping on the electronic and vibrational properties of indium nitride nanocage: A DFT study. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Hassanpour A, Youseftabar-Miri L, Nezhad PDK, Ahmadi S, Ebrahimiasl S. Kinetic stability and NBO analysis of the C20-nAln nanocages (n = 1–5) using DFT investigation. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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7
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Mahdavifar Z. Prediction of unexpected B n P n structures: promising materials for non-linear optical devices and photocatalytic activities. NANOSCALE ADVANCES 2021; 3:2846-2861. [PMID: 36134180 PMCID: PMC9417267 DOI: 10.1039/d0na01040e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 03/26/2021] [Indexed: 06/16/2023]
Abstract
In the present work, a modern method of crystal structure prediction, namely USPEX conjugated with density functional theory (DFT) calculations, was used to predict the new stable structures of B n P n (n = 12, 24) clusters. Since B12N12 and B24N24 fullerenes have been synthesized experimentally, it motivated us to explore the structural prediction of B12P12 and B24P24 clusters. All new structures were predicted to be energetically favorable with negative binding energy in the range from -4.7 to -4.8 eV per atom, suggesting good experimental feasibility for the synthesis of these structures. Our search for the most stable structure of B n P n clusters led us to classify the predicted structures into two completely distinct structures such as α-B n P n and β-B n P n phases. In α-B n P n , each phosphorus atom is doped into a boron atom, whereas B atoms form a B n unit. On the other hand, each boron atom in the β-phase was bonded to a phosphorus atom to make a fullerene-like cage structure. Besides, theoretical simulations determined that α-B n P n structures, especially α-B24P24, show superior oxidation resistance and also, both α-B n P n and β-B n P n exhibit better thermal stability; the upper limit temperature that structures can tolerance is 900 K. The electronic properties of new compounds illustrate a higher degree of absorption in the UV and visible-region with the absorption coefficient larger than 105 cm-1, which suggests a wide range of opportunities for advanced optoelectronic applications. The β-B n P n phase has suitable band alignments in the visible-light excitation region, which will produce enhanced photocatalytic activities. On the other hand, α-B n P n structures with modest band gap exhibit large second hyperpolarizability, which are anticipated to have excellent potential as second-order non-linear optical (NLO) materials.
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Affiliation(s)
- Zabiollah Mahdavifar
- Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz Ahvaz Iran +98-611-3331042
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8
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Al-Otaibi JS, Mary YS, Mary YS, Serdaroglu G. Adsorption of adipic acid in Al/B-N/P nanocages: DFT investigations. J Mol Model 2021; 27:113. [PMID: 33765215 DOI: 10.1007/s00894-021-04742-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 03/15/2021] [Indexed: 02/07/2023]
Abstract
Drug delivery clusters based on nanocages recently have been the most capable to study. Adipic acid (ADPA) interaction mechanism over nanocages of X(Al/B)12Y(N/P)12 was investigated. We analyzed various electronic, chemical, and spectroscopic properties with nanocages of the adsorbed ADPA molecule. Adsorption energies were calculated to study the adsorption of ADPA with nanocages. Raman enhanced surface scattering is used to track the drug as an effective approach to vibrational spectroscopy. Detection of the drug has been investigated using the SERS properties of nanocages. Title drug acts as a donor of electrons and adsorbs at the electrophilic site of nanocages. Variations in chemical descriptors to recognize the sensing property of ADPA-nanocages are also noted. Analysis of various properties explains enhancement which makes it possible to detect the drug in other products. • Interaction of adipic acid with fullerene-like metal nanocages • Enhancement of spectral properties • Changes in charge transfer values in nanocage-drug system • Docking studies identify the drug delivery property.
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Affiliation(s)
- Jamelah S Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | | | | | - Goncagül Serdaroglu
- Faculty of Education, Math. and Sci. Edu., Sivas Cumhuriyet University, 58140, Sivas, Turkey
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9
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Structures and Electronic Properties of Small AlnSen (n = 1–5) Clusters. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2021. [DOI: 10.1007/s40010-019-00653-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Youli Xu, Chen X, Zhou Z, Han C, Yang B, Xu B, Liu D. Theoretical Study on Growth Mechanism of AlnNn (n = 2–9) Clusters. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024420070316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Hussain S, Shahid Chatha SA, Hussain AI, Hussain R, Mehboob MY, Gulzar T, Mansha A, Shahzad N, Ayub K. Designing Novel Zn-Decorated Inorganic B 12P 12 Nanoclusters with Promising Electronic Properties: A Step Forward toward Efficient CO 2 Sensing Materials. ACS OMEGA 2020; 5:15547-15556. [PMID: 32637830 PMCID: PMC7331065 DOI: 10.1021/acsomega.0c01686] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 06/05/2020] [Indexed: 05/24/2023]
Abstract
Gas sensing materials have been widely explored recently owing to their versatile environmental and agriculture monitoring applications. The present study advocates the electronic response of Zn-decorated inorganic B12P12 nanoclusters to CO2 gas. Herein, a series of systems CO2-Zn-B12P12 (E1-E4) are designed by adsorption of CO2 on Zn-decorated B12P12 nanoclusters, and their electronic properties are explored by density functional theory. Initially, placement of Zn on B12P12 delivers four geometries named as D1-D4, with adsorption energy values of -57.12, -22.94, -21.03, and -14.07 kJ/mol, respectively, and CO2 adsorption on a pure B12P12 nanocage delivers one geometry with an adsorption energy of -4.88 kJ/mol. However, the interaction of CO2 with D1-D4 systems confers four geometries named as E1 (E ad = -75.12 kJ/mol), E2 (E ad = -25.89 kJ/mol), E3 (E ad = -42.43 kJ/mol), and E4 (E ad = -28.73 kJ/mol). Various electronic parameters such as dipole moment, molecular electrostatic potential analysis, frontier molecular orbital analysis, Q NBO, global descriptor of reactivity, and density of states are also estimated in order to understand the unique interaction mechanism. The results of these analyses suggested that Zn decoration on B12P12 significantly favors CO2 gas adsorption, and a maximum charge separation is also noted when CO2 is adsorbed on the Zn-B12P12 nanocages. Therefore, the Zn-decorated B12P12 nanocages are considered as potential candidates for application in CO2 sensors.
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Affiliation(s)
- Shahid Hussain
- Department
of Applied Chemistry, Government College
University, Faisalabad 38000, Pakistan
| | | | - Abdullah Ijaz Hussain
- Department
of Applied Chemistry, Government College
University, Faisalabad 38000, Pakistan
| | - Riaz Hussain
- Department
of Chemistry, University of Okara, Okara 56300, Punjab, Pakistan
| | | | - Tahsin Gulzar
- Department
of Applied Chemistry, Government College
University, Faisalabad 38000, Pakistan
| | - Asim Mansha
- Department
of Applied Chemistry, Government College
University, Faisalabad 38000, Pakistan
| | - Nabeel Shahzad
- Department
of Applied Chemistry, Government College
University, Faisalabad 38000, Pakistan
| | - Khurshid Ayub
- Department
of Chemistry, COMSATS University, Abbottabad Campus, Abbottabad 22060, Pakistan
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12
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Hussain S, Hussain R, Mehboob MY, Chatha SAS, Hussain AI, Umar A, Khan MU, Ahmed M, Adnan M, Ayub K. Adsorption of Phosgene Gas on Pristine and Copper-Decorated B 12N 12 Nanocages: A Comparative DFT Study. ACS OMEGA 2020; 5:7641-7650. [PMID: 32280908 PMCID: PMC7144133 DOI: 10.1021/acsomega.0c00507] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 03/06/2020] [Indexed: 05/06/2023]
Abstract
Nanostructured gas sensors find diverse applications in environmental and agricultural monitoring. Herein, adsorption of phosgene (COCl2) on pure and copper-decorated B12N12 (Cu-BN) is analyzed through density functional theory (DFT) calculations. Adsorption of copper on B12N12 results in two optimized geometries, named Cu@b66 and Cu@b64, with adsorption energies of -193.81 and -198.45 kJ/mol, respectively. The adsorption/interaction energies of COCl2 on pure BN nanocages are -9.30, -6.90, and -3.70 kJ/mol in G1, G2, and G3 geometries, respectively, whereas the interaction energies of COCl2 on copper-decorated BN are -1.66 and -16.95 kJ/mol for B1 and B2, respectively. To examine the changes in the properties of pure and Cu-BN nanocages, geometric parameters, dipole moment, Q NBO, frontier molecular orbitals, and partial density of states (PDOS) are analyzed to comprehensively illustrate the interaction mechanism. The results of these parameters reveal that COCl2 binds more strongly onto copper-doped BN nanocages. Moreover, a higher charge separation is observed in COCl2-Cu-BN geometries as compared to copper-decorated BN geometries. Therefore, these nanocages may be considered as potential candidates for application in phosgene sensors.
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Affiliation(s)
- Shahid Hussain
- Department
of Applied Chemistry, Government College
University, Faisalabad 38000, Pakistan
| | - Riaz Hussain
- Department
of Chemistry, University of Okara, Okara 56300, Pakistan
| | | | | | - Abdullah Ijaz Hussain
- Department
of Applied Chemistry, Government College
University, Faisalabad 38000, Pakistan
| | - Ali Umar
- Department
of Chemistry, University of Okara, Okara 56300, Pakistan
| | - Muhammad Usman Khan
- Department
of Applied Chemistry, Government College
University, Faisalabad 38000, Pakistan
- Department
of Chemistry, University of Okara, Okara 56300, Pakistan
| | - Mahmood Ahmed
- Renacon
Pharma (PVT) Limited, Lahore 54600, Pakistan
| | - Muhammad Adnan
- College
of Natural Sciences, Department of Chemistry, Chosun University, Gwangju 501-759, Republic of Korea
| | - Khurshid Ayub
- Department
of Chemistry, COMSATS University, Abbottabad Campus, Abbottabad 22060, Pakistan
- . Tel: +92-992-383591. Fax: +92-992-383441
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Abstract
Adsorption of SO2 on pure B12P12 and Zn-doped B12P12 is investigated through density functional theory methods. Zn adsorption on BP delivers four optimized geometries: B-Top, P-top, b64, and ring-enlarged geometry with adsorption energies of −57.12 kJ/mol, −14.50 kJ/mol, −22.94 kJ/mol, and −14.83 kJ/mol, respectively. The adsorption energy of SO2 on pristine boron phosphide is −14.92 kJ/mol. Interaction of SO2 with Zn-doped boron phosphide gives four different geometries with adsorption energies of −69.76 kJ/mol, −9.82 kJ/mol, −104.92 kJ/mol, and −41.87 kJ/mol. Geometric parameters such as dipole moment, QNBO, frontier molecular orbital analysis, PDOS, and global indices of reactivity are performed to visualize the changes in electronic properties of B12P12 after Zn and SO2 adsorption.
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14
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The thermodynamic, quantum, AIM and NBO study of the interaction of pyrazinamide drug with the pristine and transition metal-doped B12P12. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00181-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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15
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Electronic Structure of Cubane-Like Vanadium–Nitrogen Cationic Clusters [V4N4]+ and [V6N6]+. INORGANICS 2019. [DOI: 10.3390/inorganics7040052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Density Functional Theory and Complete Active Space Self-Consistent Field (CASSCF) methodologies are used to explore the electronic structure of the cationic V–N clusters, [V4N4]+ and [V6N6]+, that have been identified in recent mass spectrometric experiments. Our calculations indicate that both clusters are based on cubane-like fragments of the rock-salt lattice. In the smaller [V4N4]+ cluster, the V–V bonding is delocalized over the tetrahedron, with net bond orders of 1/3 per V–V bond. In [V6N6]+, in contrast, the V–V bonding is strongly localized in the central V2N2 unit, which has a short V=V double bond. CASSCF calculations reveal that both localized and delocalized V–V bonds are highly multi-configurational.
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16
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Remarkable nonlinear optical response of alkali metal doped aluminum phosphide and boron phosphide nanoclusters. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.08.121] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Rad AS. Comparison of X12Y12 (X=Al, B and Y=N, P) fullerene-like nanoclusters toward adsorption of dimethyl ether. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2018. [DOI: 10.1142/s021963361850013x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Density functional theory (DFT) was used for studying the adsorption of dimethyl ether (DME) onto four nanoclusters: [Formula: see text] ([Formula: see text], B and [Formula: see text], P). The interaction energy along with the adsorption energy was investigated, and it was found that DME molecule has higher binding energies upon adsorption on Al-containing clusters, but on the other hand, it results in higher alteration in the electronic structure of B-containing cluster. Outcomes of charge analysis and frontier molecular orbital confirm higher alteration in the electronic structure of the later clusters, suggesting the possible potential of B[Formula: see text]N[Formula: see text] and B[Formula: see text]P[Formula: see text] as two sensitive sensors for DME. Nevertheless, Al-containing clusters showed much better adsorbent property, judging from their higher adsorption energies. The positive values of charge transfer upon DME adsorption confirm the p-type semiconducting property of all these clusters.
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Affiliation(s)
- Ali Shokuhi Rad
- Department of Chemical Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
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18
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Zhao RN, Han JG, Duan Y. A Density Functional Prediction of the Geometries, Stabilities, and Electronic Properties of Nanosize Cage-Like (InN)2
n
(n
= 6-27, 45, 54) Semiconductor Materials. ADVANCED THEORY AND SIMULATIONS 2018. [DOI: 10.1002/adts.201800001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Run-Ning Zhao
- Institute of Applied Mathematics and Physics; Shanghai DianJi University; Shanghai 201306 People's Republic of China
| | - Ju-Guang Han
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei 230029 People's Republic of China
| | - Yuhua Duan
- U.S. Department of Energy; National Energy Technology Laboratory; Pittsburgh PA 15236 USA
- Parsons Project Services Inc.; South Park PA 15129 USA
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20
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Guo C, Wang C. Carbon dioxide capture by planar (AlN) n clusters (n=3-5). J Mol Model 2017; 23:288. [PMID: 28948383 DOI: 10.1007/s00894-017-3459-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 09/05/2017] [Indexed: 11/27/2022]
Abstract
Searching for materials and technologies of efficient CO2 capture is of the utmost importance to reduce the CO2 impact on the environment. Therefore, the (AlN)n clusters (n = 3-5) are researched using density functional theoretical calculations. The results of the optimization show that the most stable structures of (AlN)n clusters all display planar configurations at B3LYP and G3B3 methods, which are consistent with the reported results. For these planar clusters, we further systematically studied their interactions with carbon dioxide molecules to understand their adsorption behavior at the B3LYP/6-311+G(d,p) level, including geometric optimization, binding energy, bond index, and electrostatic. We found that the planar structures of (AlN)n (n = 3-5) can capture 3-5 CO2 molecules. The result indicates that (AlN)n (n = 3-5) clusters binding with CO2 is an exothermic process (the capture of every CO2 molecule on (AlN)n clusters releases at least 30 kcal mol-1 in relative free energy values). These analysis results are expected to further motivate the applications of clusters to be efficient CO2 capture materials.
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Affiliation(s)
- Chen Guo
- College of Science, Northeast Agricultural University, Harbin, Heilongjiang, People's Republic of China, 150030.
| | - Chong Wang
- Department of Chemistry, College of Science, Northeast Forestry University, Harbin, 150040, People's Republic of China
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Rad AS, Ayub K. Adsorption of thiophene on the surfaces of X 12 Y 12 (X = Al, B, and Y = N,P) nanoclusters; A DFT study. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.05.020] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Koohi M, Shariati M, Soleimani Amiri S. A comparative study on the Ge6C14heterofullerene nanocages: a density functional survey. J PHYS ORG CHEM 2017. [DOI: 10.1002/poc.3678] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- M. Koohi
- Young Researchers and Elites Club, North Tehran Branch; Islamic Azad University; Tehran Iran
| | - M. Shariati
- Department of Chemical Engineering; Tafresh University; Tafresh 3951879611 Iran
| | - S. Soleimani Amiri
- Department of Chemistry, Karaj Branch; Islamic Azad University; Karaj Iran
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Ghamsari PA, Nouraliei M, Gorgani SS. DFT simulation towards evaluation the molecular structure and properties of the heterogeneous C 16Mg 8O 8 nano-cage as selective nano-sensor for H 2 and N 2 gases. J Mol Graph Model 2016; 70:163-169. [PMID: 27744122 DOI: 10.1016/j.jmgm.2016.08.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 07/14/2016] [Accepted: 08/12/2016] [Indexed: 10/21/2022]
Abstract
Adsorption of hydrogen (H2) and nitrogen (N2) molecules was analyzed on a new fullerene-like C16Mg8O8 nano-cage, composed of magnesium, oxygen, and carbon, using density functional theory. A detailed analysis of the energy, geometry, and electronic structure of various H2 and N2 adsorptions on the cluster surface was performed. The adsorption energies of H2 and N2 were estimated to ranging from -0.16 to -0.52eV, respectively. The most stable adsorption configurations were those in which the H or N atoms of the adsorbates were located near the Mg atom of the cluster surface at different sides. It was found that the heterogeneous C16Mg8O8 nano-cluster selectively act against the H2 and N2 gaseous molecules. The electrical conductivity of the cluster, arising from HOMO/LUMO energy gap, was more sensitive to N2 gaseous molecule rather than H2 one, indicating that the heterogeneous C16Mg8O8 nano-cage may be potential nano-sensor for N2 molecule. These findings were specified by analyzing the characteristics in the electron density of states (DOS).
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Affiliation(s)
- Parnia Abyar Ghamsari
- Young Researchers and Elite Club, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Milad Nouraliei
- Young Researchers and Elite Club, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
| | - Sara Soleimani Gorgani
- Young Researchers and Elite Club, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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Shokuhi Rad A, Zareyee D, Pouralijan Foukolaei V, Kamyab Moghadas B, Peyravi M. Study on the electronic structure of Al12N12 and Al12P12 fullerene-like nano-clusters upon adsorption of CH3F and CH3Cl. Mol Phys 2016. [DOI: 10.1080/00268976.2016.1220646] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- A. Shokuhi Rad
- Department of Chemical Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
| | - D. Zareyee
- Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
| | - V. Pouralijan Foukolaei
- Department of Chemical Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
| | - B. Kamyab Moghadas
- Department of Chemical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - M. Peyravi
- Faculty of Chemical Engineering, Babol University of Technology, Babol, Iran
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25
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X24Y24 fullerene-like cages with the group III and V elements X = B, Al, and Ga; Y = N, P, and As: a DFT prediction. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1386-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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Pandey RK, Waters K, Nigam S, He H, Pingale SS, Pandey AC, Pandey R. A theoretical study of structural and electronic properties of alkaline-earth fluoride clusters. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.05.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Zhou J, Huang Q, Li J, Cai D, Kang J. The InN epitaxy via controlling In bilayer. NANOSCALE RESEARCH LETTERS 2014; 9:5. [PMID: 24393422 PMCID: PMC3895708 DOI: 10.1186/1556-276x-9-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Accepted: 12/18/2013] [Indexed: 05/23/2023]
Abstract
The method of In bilayer pre-deposition and penetrated nitridation had been proposed, which had been proven to have many advantages theoretically. To study the growth behavior of this method experimentally, various pulse times of trimethylindium supply were used to get the optimal indium bilayer controlling by metalorganic vapour phase epitaxy. The results revealed that the InN film quality became better as the thickness of the top indium atomic layers was close to bilayer. A following tuning of nitridation process enhanced the quality of InN film further, which means that a moderate, stable, and slow nitridation process by NH3 flow also plays the key role in growing better-quality InN film. Meanwhile, the biaxial strain of InN film was gradually relaxing when the flatness was increasingly improved.
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Affiliation(s)
- Jin Zhou
- Fujian Key Laboratory of Semiconductor Materials and Applications, Department of Physics, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Qiangcan Huang
- Fujian Key Laboratory of Semiconductor Materials and Applications, Department of Physics, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Jinchai Li
- Fujian Key Laboratory of Semiconductor Materials and Applications, Department of Physics, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Duanjun Cai
- Fujian Key Laboratory of Semiconductor Materials and Applications, Department of Physics, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Junyong Kang
- Fujian Key Laboratory of Semiconductor Materials and Applications, Department of Physics, Xiamen University, Xiamen 361005, People’s Republic of China
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Zhang CY, Cui LY, Wang BQ, Zhang J, Lu J. Encapsulation of transition metals in aluminum nitride fullerene: TM@(AlN)12 (TM = Ti, Mn, Fe, Co, and Ni). J STRUCT CHEM+ 2013. [DOI: 10.1134/s0022476612060030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Xu M, Zhang Y, Zhang J, Qian B, Lu J, Zhang Y, Wang L, Chen X. Structures and properties evolution with size of ScN nanocrystals: A first-principles study. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.09.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rahane AB, Deshpande MD, Chakraborty S. Optical Properties of Gallium Oxide Clusters from First-Principles Calculations. J Phys Chem A 2012; 116:10559-65. [DOI: 10.1021/jp3084474] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Amol B. Rahane
- Department of Physics, H.P.T. Arts and R.Y.K. Science College, Nasik, Maharashtra 422 005, India
- Department of Physics, University of Pune, Pune, Maharashtra
411 007, India
| | - Mrinalini D. Deshpande
- Department of Physics, H.P.T. Arts and R.Y.K. Science College, Nasik, Maharashtra 422 005, India
| | - Sudip Chakraborty
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Strasse 1,
D-40237 Düsseldorf, Germany
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31
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First-principles study of the geometrical and electronic structures of InnN2 (n=1–10) clusters. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.02.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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32
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CAO ZHIJI, BALASUBRAMANIAN KRISHNAN. GEOMETRIES AND ENERGY SEPARATIONS OF ELECTRONIC STATES OF In3N, InN3, AND THEIR IONS. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2011. [DOI: 10.1142/s0219633608004106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Spectroscopic properties of the low-lying electronic states of In 3 N , InN 3, and their ions are computed by the complete active-space self-consistent field (CASSCF) followed by multireference singles + doubles configuration interaction (MRSDCI) calculations. Our results predict that the spectra of In 3 N / InN 3 are substantially different from those of Ga 3 As / GaAs 3 and Al 3 P / AlP 3 tetramers. The ground state of In 3 N is a closed-shell 1 A ′1 state with a planar D 3h symmetry, whereas the ground state of InN 3 is a 1Σ+ state of linear In – N – N – N structure. The equilibrium geometries, vibrational frequencies, atomization energies, adiabatic ionization potentials, electron affinities, and other properties are discussed.
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Affiliation(s)
- ZHIJI CAO
- Department of Mathematics and Computer Science, California State University, East Bay, Hayward, CA, USA
| | - KRISHNAN BALASUBRAMANIAN
- Department of Mathematics and Computer Science, California State University, East Bay, Hayward, CA, USA
- Chemistry and Material Science Directorate, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
- Glenn T Seaborg Center, Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720, USA
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33
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A comparative study on the B12N12, Al12N12, B12P12 and Al12P12 fullerene-like cages. J Mol Model 2011; 18:2653-8. [PMID: 22086460 DOI: 10.1007/s00894-011-1286-y] [Citation(s) in RCA: 125] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Accepted: 10/17/2011] [Indexed: 10/15/2022]
Abstract
The stability, geometry and electronic structure of the title nanoclusters were compared by using density functional theory (DFT) calculations. Their electrical property analysis showed that the relative magnitude of the HOMO-LUMO gaps (eV) that are average values from the calculated results with five different DFT functionals is as follows: B12N12(7:02)>>Al12N12(4.09)>B12P12(3.80)>Al12P12(3.39). Computing the standard enthalpy and the Gibbs free energy of formation, it was found that the B(12)N(12) structure is thermodynamically stable at 298 K and 1 atmosphere of pressure, while the Al(12)N(12) structure may be stable at low temperatures. Due to positive values of change of enthalpy and entropy of formation for both the B(12)P(12) and Al(12)P(12) clusters, it seems that their formation from the consisting atoms is not spontaneous at any temperature.
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34
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Yong Y, Song B, He P. Cluster-assembled materials based on M12N12 (M = Al, Ga) fullerene-like clusters. Phys Chem Chem Phys 2011; 13:16182-9. [PMID: 21842091 DOI: 10.1039/c1cp21242g] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Yongliang Yong
- State Key Laboratory of Silicon Materials and Department of Physics, Zhejiang University, Hangzhou 310027, People's Republic of China
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35
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Cao B, Starace AK, Judd OH, Bhattacharyya I, Jarrold MF, López JM, Aguado A. Activation of Dinitrogen by Solid and Liquid Aluminum Nanoclusters: A Combined Experimental and Theoretical Study. J Am Chem Soc 2010; 132:12906-18. [DOI: 10.1021/ja103356r] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Baopeng Cao
- Chemistry Department, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, and Departamento de Física Teórica, Universidad de Valladolid, Valladolid 47011, Spain
| | - Anne K. Starace
- Chemistry Department, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, and Departamento de Física Teórica, Universidad de Valladolid, Valladolid 47011, Spain
| | - Oscar H. Judd
- Chemistry Department, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, and Departamento de Física Teórica, Universidad de Valladolid, Valladolid 47011, Spain
| | - Indrani Bhattacharyya
- Chemistry Department, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, and Departamento de Física Teórica, Universidad de Valladolid, Valladolid 47011, Spain
| | - Martin F. Jarrold
- Chemistry Department, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, and Departamento de Física Teórica, Universidad de Valladolid, Valladolid 47011, Spain
| | - José M. López
- Chemistry Department, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, and Departamento de Física Teórica, Universidad de Valladolid, Valladolid 47011, Spain
| | - Andrés Aguado
- Chemistry Department, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, and Departamento de Física Teórica, Universidad de Valladolid, Valladolid 47011, Spain
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36
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Wang H, Ko YJ, Bowen KH, Sergeeva AP, Averkiev BB, Boldyrev AI. Combined Experimental and Theoretical Investigation of Three-Dimensional, Nitrogen-Doped, Gallium Cluster Anions. J Phys Chem A 2010; 114:11070-7. [DOI: 10.1021/jp101419b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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38
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Zhang WQ, Sun JM, Zhao GF, Zhi LL. The structural and electronic properties of In(n)N(n = 1-13) clusters. J Chem Phys 2008; 129:064310. [PMID: 18715072 DOI: 10.1063/1.2968542] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The structural and electronic properties of In(n)N(n=1-13) clusters have been investigated by density-functional theory with the generalized gradient approximation. The results indicate that the equilibrium structures of In(n)N are linear for n=1,2, planar for n=3-5, and three dimensional for n=6-13. Maximum peaks were observed for In(n)N clusters at n=3,7,9 on the size dependence for second-order energy difference. These imply that these clusters possess relatively higher stability, which is consistent with the case of binding energy per atom. Moreover, the results show that the bonding in small In(n)N clusters has a little ionic character by Mulliken population analysis. The energy gap between the highest occupied and lowest unoccupied molecular orbitals, the vertical ionization potential and electron vertical affinity (VIP and VEA) form an even-odd alternating pattern with increasing cluster size. In general, the VIP tends to lower as the cluster size increases, while the VEA tends to increase as the cluster size increases.
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Affiliation(s)
- Wen-Qing Zhang
- School of Physics and Electronics, Henan University, Kaifeng 475004, People's Republic of China
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39
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Hou J, Song B. Density-functional study of structural and electronic properties of SinCn (n=1–10) clusters. J Chem Phys 2008; 128:154304. [DOI: 10.1063/1.2895051] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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40
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41
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Yadav PS, Yadav RK, Agrawal BK. Structural, electronic and vibrational properties of small Ga(x)N(y) (x+y = 2-5) nanoclusters: a B3LYP-DFT study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2007; 19:076209. [PMID: 22251596 DOI: 10.1088/0953-8984/19/7/076209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
An ab initio study of the stability, structural and electronic properties has been made for 49 gallium nitride nanoclusters, Ga(x)N(y) (x+y = 2-5). Among the various configurations corresponding to a fixed x+y = n value, the configuration possessing the maximum value of binding energy (BE) is named as the most stable structure. The vibrational and optical properties have been investigated only for the most stable structures. A B3LYP-DFT/6-311G(3df) method has been employed to optimize the geometries of the nanoclusters fully. The binding energies (BEs), highest-occupied and lowest-unoccupied molecular orbital (HOMO-LUMO) gaps and the bond lengths have been obtained for all the clusters. We have considered the zero-point energy (ZPE) corrections ignored by the earlier workers. The adiabatic and vertical ionization potentials (IPs) and electron affinities (EAs), charge on atoms, dipole moments, vibrational frequencies, infrared intensities (IR Int.), relative infrared intensities (Rel. IR Int.) and Raman scattering activities have been investigated for the most stable structures. The configurations containing the N atoms in majority are seen to be the most stable structures. The strong N-N bond has an important role in stabilizing the clusters. For clusters containing one Ga atom and all the others as N atoms, the BE increases monotonically with the number of the N atoms. The HOMO-LUMO gap and IP fluctuate with the cluster size n, having larger values for the clusters containing odd number of N atoms. On the other hand, the EA decreases with the cluster size up to n = 3, and shows slow fluctuations thereafter for the larger clusters. In general, the adiabatic IP (EA) is smaller (greater) than the vertical IP (EA) because of the lower energies of the most stable ground state of the cationic (anionic) clusters. The optical absorption spectrum or electron energy loss spectrum (EELS) is unique for every cluster, and may be used to characterize a specific cluster. All the predicted physical quantities are in good agreement with the experimental data wherever available. The growth of these most stable structures should be possible in experiments.
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Affiliation(s)
- P S Yadav
- Physics Department, Allahabad University, Allahabad-211002, India.
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42
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43
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Zhang C. Theoretical study of structure and photoelectron spectroscopy of In(x)P(y)- and In(x)P(y) (x + y < or = 6) clusters. J Chem Phys 2006; 124:184316. [PMID: 16709115 DOI: 10.1063/1.2194553] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The geometries and vibrational frequencies of In(x)P(y)- and In(x)P(y) are investigated by hybrid B3LYP functional for x + y < or = 6 and CCSD(T) method for x + y < or = 3. As for the small clusters having two to three atoms, the geometrical and electronic structures and vibrational frequencies at the B3LYP level are in good agreement with those at the CCSD(T) level. Among the most stable structures of In(x)P(y)- and In(x)P(y) (x + y < or = 6) clusters the P-rich clusters are more stable than In-rich clusters. Moreover, we found that those P atoms in In(x)P(y)- and In(x)P(y) (x + y < or = 6) clusters prefer to form a P-P bond, triangle, quadrangle, and pentagon for y = 2, 3, 4, and 5, respectively. Also, the vertical detachment energies of In(x)P(y)- (x + y < or = 6) and electron affinities of In(x)P(y) (x + y < or = 6) clusters obtained by B3LYP are in good agreement with the experimental values available. Theoretically, we show that the electron affinity of In3P3 is very low because, as observed in the experiment, there is a formation of a new P-P bond after an electron is lost from In(3)P(3)-, and we find that the similar phenomena exhibit in In2P4(-) cluster as well.
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Affiliation(s)
- Congjie Zhang
- School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, China.
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44
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45
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Costales A, Blanco MA, Francisco E, Pendas AM, Pandey R. First Principles Study of Neutral and Anionic (Medium-Size) Aluminum Nitride Clusters: AlnNn,n= 7−16. J Phys Chem B 2006; 110:4092-8. [PMID: 16509701 DOI: 10.1021/jp056569+] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the results of a theoretical study of AlnNn (n=7-16) clusters that is based on density functional theory. We will focus on the evolution of structural and electronic properties with the cluster size in the stoichiometric AlN clusters considered. The results reveal that the structural and electronic properties tend to evolve toward their respective bulk limits. The rate of evolution is, however, slow due to the hollow globular shape exhibited by the clusters, which introduces large surface effects that dominate the properties studied. We will also discuss the changes induced upon addition of an extra electron to the respective neutral clusters.
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Affiliation(s)
- Aurora Costales
- Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain.
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46
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Sheehan SM, Meloni G, Parsons BF, Wehres N, Neumark DM. Spectroscopic characterization of the ground and low-lying electronic states of Ga2N via anion photoelectron spectroscopy. J Chem Phys 2006; 124:64303. [PMID: 16483203 DOI: 10.1063/1.2159492] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Anion photoelectron spectra of Ga(2)N(-) were measured at photodetachment wavelengths of 416 nm(2.978 eV), 355 nm(3.493 eV), and 266 nm(4.661 eV). Both field-free time-of-flight and velocity-map imaging methods were used to collect the data. The field-free time-of-flight data provided better resolution of the features, while the velocity-map-imaging data provided more accurate anisotropy parameters for the peaks. Transitions from the ground electronic state of the anion to two electronic states of the neutral were observed and analyzed with the aid of electronic structure calculations and Franck-Condon simulations. The ground-state band was assigned to a transition between linear ground states of Ga(2)N(-)(X (1)Sigma(g) (+)) and Ga(2)N(X (2)Sigma(u) (+)), yielding the electron affinity of Ga(2)N, 2.506+/-0.008 eV. Vibrationally resolved features in the ground-state band were assigned to symmetric and antisymmetric stretch modes of Ga(2)N, with the latter allowed by vibronic coupling to an excited electronic state. The energy of the observed excited neutral state agrees with that calculated for the A (2)Pi(u) state, but the congested nature of this band in the photoelectron spectrum is more consistent with a transition to a bent neutral state.
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Affiliation(s)
- Sean M Sheehan
- Department of Chemistry, University of California, Berkeley, 94720, USA
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47
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Costales A, Blanco MA, Francisco E, Pandey R, Martín Pendás A. Evolution of the Properties of AlnNn Clusters with Size. J Phys Chem B 2005; 109:24352-60. [PMID: 16375435 DOI: 10.1021/jp055094j] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A global optimization of stoichiometric (AlN)(n) clusters (n = 1-25, 30, 35, ..., 95, 100) has been performed using the basin-hopping (BH) method and describing the interactions with simple and yet realistic interatomic potentials. The results for the smaller isomers agree with those of previous electronic structure calculations, thus validating the present scheme. The lowest-energy isomers found can be classified in three different categories according to their structural motifs: (i) small clusters (n = 2-5), with planar ring structures and 2-fold coordination, (ii) medium clusters (n = 6-40), where a competition between stacked rings and globular-like empty cages exists, and (iii) large clusters (n > 40), large enough to mix different elements of the previous stage. All the atoms in small and medium-sized clusters are in the surface, while large clusters start to display interior atoms. Large clusters display a competition between tetrahedral and octahedral-like features: the former lead to a lower energy interior in the cluster, while the latter allow for surface terminations with a lower energy. All of the properties studied present different regimes according to the above classification. It is of particular interest that the local properties of the interior atoms do converge to the bulk limit. The isomers with n = 6 and 12 are specially stable with respect to the gain or loss of AlN molecules.
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Affiliation(s)
- Aurora Costales
- Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006-Oviedo, Spain.
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48
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Ling L, Song B, Cao PL. Theoretical study on structures of small nonstoichiometric AlN clusters. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.theochem.2005.05.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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49
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ZhangOn leave from School of Chemis D, Zhang RQ. Geometrical structures and electronic properties of AlN fullerenes: A comparative theoretical study of AlN fullerenes with BN and C fullerenes. ACTA ACUST UNITED AC 2005. [DOI: 10.1039/b503724g] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Matxain JM, Ugalde JM, Towler MD, Needs RJ. Stability and Aromaticity of BiNi Rings and Fullerenes. J Phys Chem A 2003. [DOI: 10.1021/jp036296n] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jon M. Matxain
- Kimika Fakultatea, Euskal Herriko Unibertsitatea, P.K. 1072, 20018 Donostia, Euskadi, Spain, and Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, United Kingdom
| | - Jesus M. Ugalde
- Kimika Fakultatea, Euskal Herriko Unibertsitatea, P.K. 1072, 20018 Donostia, Euskadi, Spain, and Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, United Kingdom
| | - M. D. Towler
- Kimika Fakultatea, Euskal Herriko Unibertsitatea, P.K. 1072, 20018 Donostia, Euskadi, Spain, and Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, United Kingdom
| | - R. J. Needs
- Kimika Fakultatea, Euskal Herriko Unibertsitatea, P.K. 1072, 20018 Donostia, Euskadi, Spain, and Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, United Kingdom
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