1
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Ressler AJ, Brandt ON, Weaver A, Poor JE, Ream A, Summers NA, McMillen CD, Seeram NP, Dougherty WG, Henry GE. Chromene-based Schiff Base Ligand: DNA Interaction Studies and Characterization of Tetranuclear Zinc, Nickel and Iron Complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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2
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Buthelezi S, Ibrahim H, Bala MD, Friedrich HB. Crystal structure of 4- tert-butyl-2- N-(2-pyridylmethyl)aminophenol, C 16H 20N 2O. Z KRIST-NEW CRYST ST 2021. [DOI: 10.1515/ncrs-2021-0065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C16H20N2O, monoclinic,
P
2
1
/
c
$P{2}_{1}/c$
(no. 14), a = 9.7933(2) Å, b = 17.5290(3) Å, c = 17.1148(3) Å, β = 101.242(1)°, V = 2881.67(9) Å3, Z = 8, R
gt(F) = 0.0402, wR
ref(F
2) = 0.1106, T = 150(2) K.
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Affiliation(s)
- Sipho Buthelezi
- School of Chemistry and Physics , University of KwaZulu-Natal , Westville Campus, Private Bag X54001 , Durban 4000, South Africa
| | - Halliru Ibrahim
- School of Chemistry and Physics , University of KwaZulu-Natal , Westville Campus, Private Bag X54001 , Durban 4000, South Africa
| | - Muhammad D. Bala
- School of Chemistry and Physics , University of KwaZulu-Natal , Westville Campus, Private Bag X54001 , Durban 4000, South Africa
| | - Holger B. Friedrich
- School of Chemistry and Physics , University of KwaZulu-Natal , Westville Campus, Private Bag X54001 , Durban 4000, South Africa
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3
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Cornia A, Mannini M, Sessoli R, Gatteschi D. Propeller-Shaped Fe4
and Fe3
M Molecular Nanomagnets: A Journey from Crystals to Addressable Single Molecules. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801266] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Andrea Cornia
- Department of Chemical and Geological Sciences and INSTM Research Unit; University of Modena and Reggio Emilia; 41125 Modena Italy
| | - Matteo Mannini
- Department of Chemistry “Ugo Schiff” and INSTM Research Unit; University of Florence; 50019 Sesto Fiorentino (FI) Italy
| | - Roberta Sessoli
- Department of Chemistry “Ugo Schiff” and INSTM Research Unit; University of Florence; 50019 Sesto Fiorentino (FI) Italy
- Research Area Firenze; Istituto di Chimica dei Composti Organometallici - ICCOM-CNR; 50019 Sesto Fiorentino (FI) Italy
| | - Dante Gatteschi
- Department of Chemistry “Ugo Schiff” and INSTM Research Unit; University of Florence; 50019 Sesto Fiorentino (FI) Italy
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4
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Balinski K, Schneider L, Wöllermann J, Buling A, Joly L, Piamonteze C, Feltham HLC, Brooker S, Powell AK, Delley B, Kuepper K. Element specific determination of the magnetic properties of two macrocyclic tetranuclear 3d-4f complexes with a Cu 3Tb core by means of X-ray magnetic circular dichroism (XMCD). Phys Chem Chem Phys 2018; 20:21286-21293. [PMID: 29922775 DOI: 10.1039/c7cp08689j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We apply X-ray magnetic circular dichroism to study the internal magnetic structure of two very promising star shaped macrocyclic complexes with a CuII3TbIII core. These complexes are rare examples prepared with a macrocyclic ligand that show indications of SMM (Single Molecule Magnet) behavior, and they differ only in ring size: one has a propylene linked macrocycle, [CuII3TbIII(LPr)(NO3)2(MeOH)(H2O)2](NO3)·3H2O (nickname: Cu3Tb(LPr)), and the other has the butylene linked analogue, [CuII3TbIII(LBu)(NO3)2(MeOH)(H2O)](NO3)·3H2O (nickname: Cu3Tb(LBu)). We analyze the orbital and spin contributions to the Cu and Tb ions quantitatively by applying the spin and orbital sum rules concerning the L2 (M4)/L3 (M5) edges. In combination with appropriate ligand field simulations, we demonstrate that the Tb(iii) ions contribute with high orbital magnetic moments to the magnetic anisotropy, whereas the ligand field determines the easy axis of magnetization. Furthermore, we confirm that the Cu(ii) ions in both molecules are in a divalent valence state, the magnetic moments of the three Cu ions appear to be canted due to 3d-3d intramolecular magnetic interactions. For Cu3Tb(LPr), the corresponding element specific magnetization loops reflect that the Cu(ii) contribution to the overall magnetic picture becomes more important as the temperature is lowered. This implies a low value for the 3d-4f coupling.
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Affiliation(s)
- K Balinski
- Fachbereich Physik and Institut für Physik und Chemie neuer Materialien, Universität Osnabrück, Barbarastr. 7, Osnabrück D-49069, Germany.
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5
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Bai J, Yang C, Li G, Bi Y, Li X, Tang J, Han T, Zheng YZ, Wu G, Qiu S. “Merged-chelating” approach for constructing high-spin Mn aggregate: A [MnIII2] dimer and a 2-D honeycomb network based on star-shaped [MnIIMnIII3] tetramer. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.03.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Tian H, Qiao X, Xie CZ, Ouyang Y, Xu J. Synthesis, characterization, and magnetochemical properties of two Mn4 clusters derived from 2-pyridinecarboxaldehyde Schiff base ligands. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1293256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- He Tian
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, PR China
| | - Xin Qiao
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, PR China
| | - Cheng-Zhi Xie
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, PR China
| | - Yan Ouyang
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, PR China
| | - Jingyuan Xu
- Department of Chemical Biology and Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, PR China
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7
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Haider A, Ibrahim M, Bassil BS, Carey AM, Viet AN, Xing X, Ayass WW, Miñambres JF, Liu R, Zhang G, Keita B, Mereacre V, Powell AK, Balinski K, N’Diaye AT, Küpper K, Chen HY, Stimming U, Kortz U. Mixed-Valent Mn16-Containing Heteropolyanions: Tuning of Oxidation State and Associated Physicochemical Properties. Inorg Chem 2016; 55:2755-64. [PMID: 26931312 DOI: 10.1021/acs.inorgchem.5b02503] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ali Haider
- Department of Life Sciences and Chemistry, Jacobs University, P.O.
Box 750 561, 28725 Bremen, Germany
| | - Masooma Ibrahim
- Department of Life Sciences and Chemistry, Jacobs University, P.O.
Box 750 561, 28725 Bremen, Germany
| | - Bassem S. Bassil
- Department of Life Sciences and Chemistry, Jacobs University, P.O.
Box 750 561, 28725 Bremen, Germany
- Department of Chemistry, Faculty of Sciences, University of Balamand, P.O. Box 100, Tripoli, Lebanon
| | - Akina M. Carey
- Department of Life Sciences and Chemistry, Jacobs University, P.O.
Box 750 561, 28725 Bremen, Germany
| | - Anh Nguyen Viet
- Department of Life Sciences and Chemistry, Jacobs University, P.O.
Box 750 561, 28725 Bremen, Germany
| | - Xiaolin Xing
- Department of Life Sciences and Chemistry, Jacobs University, P.O.
Box 750 561, 28725 Bremen, Germany
| | - Wassim W. Ayass
- Department of Life Sciences and Chemistry, Jacobs University, P.O.
Box 750 561, 28725 Bremen, Germany
| | - Juan F. Miñambres
- Department of Life Sciences and Chemistry, Jacobs University, P.O.
Box 750 561, 28725 Bremen, Germany
| | - Rongji Liu
- Key
Laboratory of Green Process and Engineering, Institute of Process
Engineering, Chinese Academy of Sciences, 100190, Beijing, China
| | - Guangjin Zhang
- Key
Laboratory of Green Process and Engineering, Institute of Process
Engineering, Chinese Academy of Sciences, 100190, Beijing, China
| | - Bineta Keita
- Université Paris-Sud, Laboratoire de Chimie-Physique, UMR 8000 CNRS, Orsay, F-91405, France
| | - Valeriu Mereacre
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Annie K. Powell
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Institute
of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
| | - Kamil Balinski
- Department of Physics
and Center of Physics and Chemistry of New Materials, Osnabrück University, D-49069 Osnabrück, Germany
| | - Alpha T. N’Diaye
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Karsten Küpper
- Department of Physics
and Center of Physics and Chemistry of New Materials, Osnabrück University, D-49069 Osnabrück, Germany
| | - Han-Yi Chen
- TUM CREATE, 1 CREATE Way, #10-02 CREATE Tower, 138602 Singapore
- Department
of Chemistry, Technische Universität München, Lichtenbergstraße
4, 85748 Garching, Germany
| | - Ulrich Stimming
- TUM CREATE, 1 CREATE Way, #10-02 CREATE Tower, 138602 Singapore
- Department
of Chemistry, Technische Universität München, Lichtenbergstraße
4, 85748 Garching, Germany
- School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Ulrich Kortz
- Department of Life Sciences and Chemistry, Jacobs University, P.O.
Box 750 561, 28725 Bremen, Germany
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8
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9
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Scheurer A, Korzekwa J, Nakajima T, Hampel F, Buling A, Derks C, Neumann M, Joly L, Petukhov K, Gieb K, Müller P, Kuepper K, Meyer K. Synthesis, Magnetic Properties, and X-ray Spectroscopy of Divalent Cobalt(II) and Nickel(II) Cubanes [MII4(HL2)4(OAc)4]. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201402988] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Garino C, Borfecchia E, Gobetto R, van Bokhoven JA, Lamberti C. Determination of the electronic and structural configuration of coordination compounds by synchrotron-radiation techniques. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.03.027] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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11
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Zhu YY, Cui C, Qian K, Yin J, Wang BW, Wang ZM, Gao S. A family of enantiopure FeIII4 single molecule magnets: fine tuning of energy barrier by remote substituent. Dalton Trans 2014; 43:11897-907. [DOI: 10.1039/c3dt53317d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a new family of enantiopure star-shaped FeIII4 single-molecule magnets (SMMs). Interestingly, the SMM properties of this series of clusters can be finely tuned by the remote substituent of the ligands.
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Affiliation(s)
- Yuan-Yuan Zhu
- Key Laboratory of Advanced Functional Materials and Devices
- Anhui Province
- and School of Chemical Engineering
- Hefei University of Technology
- Hefei, P. R. China
| | - Chang Cui
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, P. R. China
| | - Kang Qian
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, P. R. China
| | - Ji Yin
- Key Laboratory of Advanced Functional Materials and Devices
- Anhui Province
- and School of Chemical Engineering
- Hefei University of Technology
- Hefei, P. R. China
| | - Bing-Wu Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, P. R. China
| | - Zhe-Ming Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, P. R. China
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871, P. R. China
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12
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Karmakar S, Khanra S. Polynuclear coordination compounds: a magnetostructural study of ferromagnetically coupled Ni4O4 cubane core motif. CrystEngComm 2014. [DOI: 10.1039/c3ce41125g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Happ P, Rentschler E. Enforcement of a high-spin ground state for the first 3d heterometallic 12-metallacrown-4 complex. Dalton Trans 2014; 43:15308-12. [DOI: 10.1039/c4dt02275k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Applying a novel magnetic director approach, we have realized Cu(ii)(DMF)2Cl2[12-MCFe(III)N(Shi)-4](DMF)4·2DMF as the first heterometallic transition metal 12-MC-4 complex in order to provide this type of compound with a high-spin ground state.
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Affiliation(s)
- Peter Happ
- Institute of Inorganic and Analytical Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
- Graduate School Materials Science in Mainz
- D-55128 Mainz, Germany
| | - Eva Rentschler
- Institute of Inorganic and Analytical Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz, Germany
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14
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Zou J, Shi W, Xu N, Gao H, Cui J, Cheng P. Cobalt(II)–Lanthanide(III) Heterometallic Metal–Organic Frameworks with Unique (6,6)‐Connected Nia Topologies with 1
H
‐1,2,3‐Triazole‐4,5‐dicarboxylic Acid: Syntheses, Structures and Magnetic Properties. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301312] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ji‐Yong Zou
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE) and Synergetic Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, P. R. China
- Department of Chemistry, Tianjin University, Tianjin 300072, P. R. China
| | - Wei Shi
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE) and Synergetic Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, P. R. China
| | - Na Xu
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE) and Synergetic Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, P. R. China
| | - Hong‐Ling Gao
- Department of Chemistry, Tianjin University, Tianjin 300072, P. R. China
| | - Jian‐Zhong Cui
- Department of Chemistry, Tianjin University, Tianjin 300072, P. R. China
| | - Peng Cheng
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE) and Synergetic Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, P. R. China
- Beijing National Laboratory of Molecular Science, Beijing 100871, P. R. China
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15
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LI LEILEI, WANG SUNA, LU JING, CAO FAN, KONG LINGQIAN, DOU JIANMIN, LI DACHENG. Structures and magnetism of two manganese crowns assembled with 2,4-dihydroxyacetophenone oxime. J COORD CHEM 2013. [DOI: 10.1080/00958972.2012.756103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- LEI-LEI LI
- a Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology , School of Chemistry and Chemical Engineering, Liaocheng University , Liaocheng , China
| | - SU-NA WANG
- a Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology , School of Chemistry and Chemical Engineering, Liaocheng University , Liaocheng , China
| | - JING LU
- a Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology , School of Chemistry and Chemical Engineering, Liaocheng University , Liaocheng , China
| | - FAN CAO
- a Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology , School of Chemistry and Chemical Engineering, Liaocheng University , Liaocheng , China
| | - LING-QIAN KONG
- b Department of Chemistry and Biology , Dongchang College, Liaocheng University , Liaocheng , China
| | - JIAN-MIN DOU
- a Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology , School of Chemistry and Chemical Engineering, Liaocheng University , Liaocheng , China
| | - DA-CHENG LI
- a Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology , School of Chemistry and Chemical Engineering, Liaocheng University , Liaocheng , China
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16
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Canaj AB, Nodaraki LE, Philippidis A, Tzimopoulos DI, Fotopoulou E, Siczek M, Lis T, Milios CJ. An indeno-quinoxaline based oxime ligand for the synthesis of polynuclear Ni(ii) clusters. RSC Adv 2013. [DOI: 10.1039/c3ra41455h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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17
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Kuepper K, Raekers M, Taubitz C, Uhlarz M, Piamonteze C, de Groot FMF, Arenholz E, Galakhov VR, Mukovskii YM, Neumann M. The x-ray magnetic circular dichroism spin sum rule for 3d4 systems: Mn3+ ions in colossal magnetoresistance manganites. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:435602. [PMID: 23034342 DOI: 10.1088/0953-8984/24/43/435602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The colossal magnetoresistance manganites La(0.87±0.02)Sr(0.12±0.02)MnO(3+δ), La(0.78±0.02)Sr(0.17±0.02)MnO(3+δ), and La(0.66±0.02)Sr(0.36±0.02)MnO(3+δ) (δ close to 0) were investigated by using soft x-ray magnetic circular dichroism (XMCD) and magnetometry. Very good agreement between the values for the average Mn magnetic moments determined with these two methods was achieved by correcting the XMCD spin sum rule results by means of charge transfer multiplet calculations, which also suggest a charge transfer of ~50% for Mn(4+) and approximately equal to 30% for Mn(3+). The magnetic moment was found to be localized at the Mn ions for x = 0.17 and 0.36 at 80 K and for x = 0.12 in the temperature range from 80 to 300 K. We discuss our findings in the light of previously published data, confirming the validity of our approach.
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Affiliation(s)
- K Kuepper
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Dresden, Germany.
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18
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Heinzmann U, Dil JH. Spin-orbit-induced photoelectron spin polarization in angle-resolved photoemission from both atomic and condensed matter targets. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:173001. [PMID: 22480989 DOI: 10.1088/0953-8984/24/17/173001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The existence of highly spin polarized photoelectrons emitted from non-magnetic solids as well as from unpolarized atoms and molecules has been found to be very common in many studies over the past 40 years. This so-called Fano effect is based upon the influence of the spin-orbit interaction in the photoionization or the photoemission process. In a non-angle-resolved photoemission experiment, circularly polarized radiation has to be used to create spin polarized photoelectrons, while in angle-resolved photoemission even unpolarized or linearly polarized radiation is sufficient to get a high spin polarization. In past years the Rashba effect has become very important in the angle-resolved photoemission of solid surfaces, also with an observed high photoelectron spin polarization. It is the purpose of the present topical review to cross-compare the spin polarization experimentally found in angle-resolved photoelectron emission spectroscopy of condensed matter with that of free atoms, to compare it with the Rashba effect and topological insulators to describe the influence and the importance of the spin-orbit interaction and to show and disentangle the matrix element and phase shift effects therein.The relationship between the energy dispersion of these phase shifts and the emission delay of photoelectron emission in attosecond-resolved photoemission is also discussed. Furthermore the influence of chiral structures of the photo-effect target on the spin polarization, the interferences of different spin components in coherent superpositions in photoemission and a cross-comparison of spin polarization in photoemission from non-magnetic solids with XMCD on magnetic materials are presented; these are all based upon the influence of the spin-orbit interaction in angle-resolved photoemission.
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Affiliation(s)
- Ulrich Heinzmann
- Faculty of Physics, University of Bielefeld, Universitätsstrasse, D-33501 Bielefeld, Germany.
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19
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Biswas S, Naiya S, Gómez-García CJ, Ghosh A. Synthesis of the first heterometalic star-shaped oxido-bridged MnCu3complex and its conversion into trinuclear species modulated by pseudohalides (N3−, NCS−and NCO−): Structural analyses and magnetic properties. Dalton Trans 2012; 41:462-73. [DOI: 10.1039/c1dt11333j] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Flamourakis AG, Tzimopoulos D, Siczek M, Lis T, O'Brien JR, Akrivos PD, Milios CJ. A new oxime ligand in manganese chemistry: a [Mn8] and a [Mn6] cage from the use of 2-dihydroxy-2-phenylacetamidine. Dalton Trans 2011; 40:11371-3. [PMID: 21960383 DOI: 10.1039/c1dt11455g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of phamidoxH(2) (phamidoxH(2) = 2-dihydroxy-2-phenylacetamidine) in manganese cluster chemistry led to the synthesis and characterization of a hexametallic and an octametallic Mn(III) cluster, both of which display a S = 3 ground state.
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21
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Weyhermüller T, Wagner R, Biswas B, Chaudhuri P. A non-linear (2,2,2) alkoxo-bridging in a FeIII4O6 core potentially relevant to iron-tunicates. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.01.107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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22
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Helmstedt A, Müller N, Gryzia A, Dohmeier N, Brechling A, Sacher MD, Heinzmann U, Hoeke V, Krickemeyer E, Glaser T, Bouvron S, Fonin M, Neumann M. Spin resolved photoelectron spectroscopy of [Mn6(III)Cr(III)]3+ single-molecule magnets and of manganese compounds as reference layers. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2011; 23:266001. [PMID: 21673400 DOI: 10.1088/0953-8984/23/26/266001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Properties of the manganese-based single-molecule magnet [Mn(6)(III)Cr(III)](3+) are studied. It contains six Mn(III) ions arranged in two bowl-shaped trinuclear triplesalen building blocks linked by a hexacyanochromate and exhibits a large spin ground state of S(t) = 21/2. The dominant structures in the electron emission spectra of [Mn(6)(III)Cr(III)](3+) resonantly excited at the L(3)-edge are the L(3)M(2, 3)M(2, 3), L(3)M(2, 3)V and L(3)VV Auger emission groups following the decay of the primary p(3/2) core hole state. Significant differences of the Auger spectra from intact and degraded [Mn(6)(III)Cr(III)](3+) show up. First measurements of the electron spin polarization in the L(3)M(2, 3)V and L(3)VV Auger emission peaks from the manganese constituents in [Mn(6)(III)Cr(III)](3+) resonantly excited at the L(3)-edge near 640 eV by circularly polarized synchrotron radiation are reported. In addition spin resolved Auger electron spectra of the reference substances MnO, Mn(2)O(3) and Mn(II)(acetate)(2)·4H(2)O are given. The applicability of spin resolved electron spectroscopy for characterizing magnetic states of constituent atoms compared to magnetic circular dichroism (MCD) is verified: the spin polarization obtained from Mn(II)(acetate)(2)·4H(2)O at room temperature in the paramagnetic state compares to the MCD asymmetry revealed for a star-shaped molecule with a Mn(4)(II)O(6) core at 5 K in an external magnetic field of 5 T.
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Affiliation(s)
- Andreas Helmstedt
- Fakultät für Physik, Universität Bielefeld, Universitätsstrasse 25, 33615 Bielefeld, Germany.
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Prinz M, Kuepper K, Taubitz C, Raekers M, Khanra S, Biswas B, Weyhermüller T, Uhlarz M, Wosnitza J, Schnack J, Postnikov AV, Schröder C, George SJ, Neumann M, Chaudhuri P. A Star-Shaped Heteronuclear CrIIIMnII3 Species and Its Precise Electronic and Magnetic Structure: Spin Frustration Studied by X-Ray Spectroscopic, Magnetic, and Theoretical Methods. Inorg Chem 2010; 49:2093-102. [DOI: 10.1021/ic9012119] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manuel Prinz
- University of Osnabrück, Department of Physics, Barbarastrasse 7, D-49069 Osnabrück, Germany
| | - Karsten Kuepper
- Forschungszentrum Dresden-Rossendorf, Institut für Ionenstrahlphysik und Materialforschung, D-01314 Dresden, Germany
| | - Christian Taubitz
- University of Osnabrück, Department of Physics, Barbarastrasse 7, D-49069 Osnabrück, Germany
| | - Michael Raekers
- University of Osnabrück, Department of Physics, Barbarastrasse 7, D-49069 Osnabrück, Germany
| | - Sumit Khanra
- Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Biplab Biswas
- Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Thomas Weyhermüller
- Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Marc Uhlarz
- Hochfeld-Magnetlabor Dresden, Forschungszentrum Dresden-Rossendorf, D-01314 Dresden, Germany
| | - Joachim Wosnitza
- Hochfeld-Magnetlabor Dresden, Forschungszentrum Dresden-Rossendorf, D-01314 Dresden, Germany
| | - Jürgen Schnack
- Fakultät für Physik, Universität Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany
| | - Andrei V. Postnikov
- Laboratoire de Physique des Milieux Denses, Institut Jean Barriol, Paul Verlaine University, 1 Bd. Arago, 57078 Metz, France
| | - Christian Schröder
- University of Applied Sciences Bielefeld, Department of Engineering Sciences and Mathematics Wilhelm-Bertelsmann-Str. 10, D-33602 Bielefeld, Germany
| | - Simon J. George
- Advanced Biological and Environmental X-ray Facility, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720
| | - Manfred Neumann
- University of Osnabrück, Department of Physics, Barbarastrasse 7, D-49069 Osnabrück, Germany
| | - Phalguni Chaudhuri
- Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
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Chilton NF, Langley SK, Moubaraki B, Murray KS. Synthesis, structural and magnetic studies of an isostructural family of mixed 3d/4f tetranuclear ‘star’ clusters. Chem Commun (Camb) 2010; 46:7787-9. [DOI: 10.1039/c0cc02642e] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Sessoli R, Mannini M, Pineider F, Cornia A, Sainctavit P. XAS and XMCD of Single Molecule Magnets. SPRINGER PROCEEDINGS IN PHYSICS 2010. [DOI: 10.1007/978-3-642-04498-4_10] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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26
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Mögele F, Fantauzzi D, Wiedwald U, Ziemann P, Rieger B. Two-dimensional assembly of magnetic binuclear complexes: a scanning tunneling microscopy study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:13606-13613. [PMID: 19670886 DOI: 10.1021/la9019712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Mono- and binuclear metal-organic compounds bearing long alkyl chains were synthesized and studied at the liquid/graphite interface using scanning tunneling microscopy. Two different lamellar surface patterns as well as a star like structure were obtained driven by van der Waals interactions of the alkyl chains and weak hydrogen bonds of the phenoxy moieties. In the case of the star like structure solvent molecules (1,2,4-trichlorobenzene) are supposed to play an important role for the stabilization of the created pattern. Magnetic investigation of the bulk material by a superconducting quantum interference device magnetometer revealed magnetic moments up to 1.7 mu(B) (NiCo) and most likely antiferromagnetic coupling between the two metals within a single complex. The presented two-dimensional crystallization of the binuclear complexes may provide an easy access to new designable materials in molecular electronics.
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Affiliation(s)
- Florian Mögele
- Institute of Material and Catalysis, University of Ulm,Albert-Einstein-Allee 11, D-89069 Ulm, Germany
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Prinz M, Raekers M, Neumann M, Kuepper K, Khanra S, Weyhermüller T, Chaudhuri P. Synthesis, Structure, and Valency Verification of a Mn6
IIIO2-Cluster. Z PHYS CHEM 2009. [DOI: 10.1524/zpch.2009.6029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
A new oxime-based hexanuclear MnIII complex containing the structural core [Mn6
III(μ
3-O)2] was synthesized through a general route. We describe the preparation and characterization of the manganese(III) complex [Mn6
III(μ
3-O)2(Salox)6(CH3CH2OH)4{(CH3)3CCOO}2] by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS). Therefore we offer the first core level XPS, and XAS reference spectra of polynuclear complexes comprising only Mn(III) ions in octahedral surrounding.
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28
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Khanra S, Weyhermüller T, Chaudhuri P. A nonanuclear copper(II) cluster incorporating endogenous alkoxo- and exogenous hydroxo bridges containing [Cu3(μ3-OH)] cores. Dalton Trans 2009:3847-53. [PMID: 19417952 DOI: 10.1039/b900711c] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Sumit Khanra
- Max-Planck Institute for Bioinorganic Chemistry, Stiftstrasse 34-36, D-45470, Mülheim an der Ruhr, Germany
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29
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Inglis R, Jones LF, Milios CJ, Datta S, Collins A, Parsons S, Wernsdorfer W, Hill S, Perlepes SP, Piligkos S, Brechin EK. Attempting to understand (and control) the relationship between structure and magnetism in an extended family of Mn6 single-molecule magnets. Dalton Trans 2009:3403-12. [DOI: 10.1039/b822235e] [Citation(s) in RCA: 141] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Khanra S, Weyhermüller T, Chaudhuri P. An oximate-based hexanuclear mixed-valence MnIII4MnII2 edge-sharing bitetrahedral core with an St = 5 spin ground state. Dalton Trans 2008:4885-92. [DOI: 10.1039/b805122d] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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