Fullerene faraday cage keeps magnetic properties of inner cluster pristine

Any single molecular magnets (SMMs) perspective for application is as good as its magnetization stability in ambient conditions. Endohedral metallofullerenes (EMFs) provide a solid basis for promising SMMs. In this study, we investigated the behavior of functionalized EMFs on a gold surface (EMF‐L‐Au). Having followed the systems molecular dynamics paths, we observed that the chemically locked inner cluster inside fullerene cage will remain locked even at room temperature due to the ligand‐effect. We have located multiple possible minima with different charge arrangements between EMF‐L‐Au fragments. Remarkably, the charge state of the EMF inner cluster remained virtually constant and so magnetic properties are expected to be untouched. © 2018 Wiley Periodicals, Inc.

[1]  S. Grimme Density functional theory with London dispersion corrections , 2011 .

[2]  Shangfeng Yang,et al.  Mixed Metal Nitride Clusterfullerenes in Cage Isomers: LuxSc3−xN@C80 (x = 1, 2) As Compared with MxSc3−xN@C80 (M = Er, Dy, Gd, Nd) , 2009 .

[3]  E. Nakamura,et al.  Regioselective synthesis of [60]fullerene η5-indenide R3C60− and η5-cyclopentadienide R5C60− bearing different R groups , 2003 .

[4]  Joost VandeVondele,et al.  cp2k: atomistic simulations of condensed matter systems , 2014 .

[5]  Joost VandeVondele,et al.  Gaussian basis sets for accurate calculations on molecular systems in gas and condensed phases. , 2007, The Journal of chemical physics.

[6]  F. Totti,et al.  The disclosure of mesoscale behaviour of a 3d-SMM monolayer on Au(111) through a multilevel approach. , 2018, Nanoscale.

[7]  A. M. Conte,et al.  Electronic structure of surface-supported bis(phthalocyaninato) terbium(III) single molecular magnets. , 2008, Nano letters.

[8]  Shangfeng Yang,et al.  An endohedral single-molecule magnet with long relaxation times: DySc2N@C80. , 2012, Journal of the American Chemical Society.

[9]  James C. Greer,et al.  C60 as a Faraday cage , 2004 .

[10]  K. Burke,et al.  Rationale for mixing exact exchange with density functional approximations , 1996 .

[11]  A. Hirsch,et al.  Buckminsterfullerene C60: a chemical Faraday cage for atomic nitrogen , 1997 .

[12]  William G. Hoover,et al.  Kinetic moments method for the canonical ensemble distribution , 1996 .

[13]  M. Murugesu,et al.  Adhering magnetic molecules to surfaces , 2015 .

[14]  C. de Graaf,et al.  Electronic structure and redox properties of metal nitride endohedral fullerenes M(3)N@C(2n) (M=Sc, Y, La, and Gd; 2n=80, 84, 88, 92, 96). , 2009, Chemistry.

[15]  L. Echegoyen,et al.  Spin Density and Cluster Dynamics in Sc3N@C80– upon [5,6] Exohedral Functionalization: An ESR and DFT Study , 2013 .

[16]  D. Sánchez-Portal,et al.  The SIESTA method for ab initio order-N materials simulation , 2001, cond-mat/0111138.

[17]  Evangelina Pensa,et al.  The chemistry of the sulfur-gold interface: in search of a unified model. , 2012, Accounts of chemical research.

[18]  B. Büchner,et al.  Record-high thermal barrier of the relaxation of magnetization in the nitride clusterfullerene Dy2ScN@C80-Ih† , 2017, Chemical communications.

[19]  Felipe Zapata,et al.  Molcas 8: New capabilities for multiconfigurational quantum chemical calculations across the periodic table , 2016, J. Comput. Chem..

[20]  S. Nosé A unified formulation of the constant temperature molecular dynamics methods , 1984 .

[21]  D. Pettifor,et al.  Functionalized fullerenes in self-assembled monolayers. , 2011, Langmuir : the ACS journal of surfaces and colloids.

[22]  Keith S. Murray,et al.  PHI: A powerful new program for the analysis of anisotropic monomeric and exchange‐coupled polynuclear d‐ and f‐block complexes , 2013, J. Comput. Chem..

[23]  L. Chibotaru,et al.  Ab Initio Crystal Field for Lanthanides. , 2017, Chemistry.

[24]  Edwige Otero,et al.  Quantum tunnelling of the magnetization in a monolayer of oriented single-molecule magnets , 2010, Nature.

[25]  M. Rotter Using McPhase to calculate magnetic phase diagrams of rare earth compounds , 2004 .

[26]  D. Ruiz-Molina,et al.  Advances on structuring, integration and magnetic characterization of molecular nanomagnets on surfaces and devices. , 2012, Chemical Society reviews.

[27]  A. Caneschi,et al.  Molecular magnets and surfaces: A promising marriage. A DFT insight , 2015 .

[28]  A. Popov,et al.  Magnetic anisotropy of endohedral lanthanide ions: paramagnetic NMR study of MSc2N@C80-I h with M running through the whole 4f row , 2015, Chemical science.

[29]  Michael Walter,et al.  The atomic simulation environment-a Python library for working with atoms. , 2017, Journal of physics. Condensed matter : an Institute of Physics journal.

[30]  K Schulten,et al.  VMD: visual molecular dynamics. , 1996, Journal of molecular graphics.

[31]  Matteo Mannini,et al.  Chemical strategies and characterization tools for the organization of single molecule magnets on surfaces. , 2011, Chemical Society Reviews.

[32]  H. Häkkinen,et al.  The gold-sulfur interface at the nanoscale. , 2012, Nature chemistry.

[33]  A. Caneschi,et al.  A periodic mixed gaussians-plane waves DFT study on simple thiols on Au(111): adsorbate species, surface reconstruction, and thiols functionalization. , 2011, Physical chemistry chemical physics : PCCP.

[34]  F. Totti,et al.  Single molecule magnets grafted on gold: magnetic properties from ab initio molecular dynamics , 2015 .