PMID- 34114807
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210706
IS  - 1520-510X (Electronic)
IS  - 0020-1669 (Linking)
VI  - 60
IP  - 13
DP  - 2021 Jul 5
TI  - Influence of the Different Types of Auxiliary Noncarboxylate Organic Ligands on 
      the Topologies and Magnetic Relaxation Behavior of Zn-Dy Heterometallic Single 
      Molecule Magnets.
PG  - 9941-9955
LID - 10.1021/acs.inorgchem.1c01217 [doi]
AB  - In this work, we first synthesized a Zn-Dy complex, 
      [Zn(6)Dy(2)(L)(6)(tea)(2)(CH(3)OH)(2)].6CH(3)OH.8H(2)O (H(2)L = 
      N-3-methoxysalicylidene-2-amino-3-hydroxypyridine, teaH(3) = triethanolamine, 1), 
      by employing H(2)L, anhydrous ZnCl(2), and Dy(NO(3))(3).5H(2)O reacting with 
      auxiliary ligand teaH(3) in the mixture of CH(3)OH and DMF. When teaH(3) and the 
      solvent CH(3)OH in the reaction system of 1 were replaced by the auxiliary ligand 
      2,6-pyridinedimethanol (pdmH(2)) and the solvent MeCN, another Zn-Dy complex, 
      [Zn(4)Dy(4)(L)(6)(pdm)(2)(pdmH)(4)].10CH(3)CN.5H(2)O (2), was obtained. For 1, 
      its crystal structure can be viewed as a dimer of two Zn(3)Dy(III) units. 
      However, for 2, four Dy(III) form a zigzag arrangement, and each of its terminals 
      linked two Zn(II) ions. Interestingly, although the structural topologies of 1 
      and 2 are different, the coordination geometries of Dy(III) in 1 and 2 are all 
      triangular dodecahedron (TDD-8). The difference is that the continuous shape 
      measure (CShM) values of Dy(III) in 1 are larger than the corresponding values in 
      2. Magnetic investigation revealed that the diluted sample 1@Y exhibits two 
      magnetic relaxation processes, while 2 only exhibits a single relaxation process. 
      Ab initio calculations indicated that, in the crystal lattice of 1, two complexes 
      exhibiting slightly different CShM values of Dy(III) result in the double 
      relaxation behavior of 1@Y. However, for 2, one of two Dy(III) fragments 
      possesses a fast quantum tunneling of magnetization (QTM), resulting in its 
      magnetic process presented at T < 1.8 K, so 2 exhibits single relaxation 
      behavior. More importantly, the theoretical calculations also clearly indicated 
      that the weak ligation at equatorial sites of Dy(III) in 1 and 2 ensure 1@Y and 2 
      possess SMM behavior, although the coordination geometry of Dy(III) (TDD-8) in 1 
      and 2 severely deviates from the ideal polyhedron and its axial symmetry is low.
FAU - Wang, Hui-Sheng
AU  - Wang HS
AUID- ORCID: 0000-0002-4502-9996
AD  - School of Chemistry and Environmental Engineering, Key Laboratory of Green 
      Chemical Process of Ministry of Education, Key Laboratory of Novel Reactor and 
      Green Chemical Technology of Hubei Province, Wuhan Institute of Technology, Wuhan 
      430074, P. R. China.
FAU - Zhang, Ke
AU  - Zhang K
AD  - School of Chemistry and Environmental Engineering, Key Laboratory of Green 
      Chemical Process of Ministry of Education, Key Laboratory of Novel Reactor and 
      Green Chemical Technology of Hubei Province, Wuhan Institute of Technology, Wuhan 
      430074, P. R. China.
FAU - Wang, Jia
AU  - Wang J
AD  - State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical 
      Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing 
      University, Nanjing 210046, P. R. China.
FAU - Hu, Zhao-Bo
AU  - Hu ZB
AD  - State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical 
      Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing 
      University, Nanjing 210046, P. R. China.
FAU - Zhang, Zaichao
AU  - Zhang Z
AD  - Jiangsu Key Laboratory for the Chemistry of Low-dimensional Materials, School of 
      Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 210024, P. 
      R. China.
FAU - Song, You
AU  - Song Y
AUID- ORCID: 0000-0002-0289-7830
AD  - State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical 
      Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing 
      University, Nanjing 210046, P. R. China.
FAU - Zhang, Yi-Quan
AU  - Zhang YQ
AUID- ORCID: 0000-0003-1818-0612
AD  - Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, 
      Nanjing Normal University, Nanjing 210023, P. R. China.
LA  - eng
PT  - Journal Article
DEP - 20210611
PL  - United States
TA  - Inorg Chem
JT  - Inorganic chemistry
JID - 0366543
SB  - IM
EDAT- 2021/06/12 06:00
MHDA- 2021/06/12 06:01
CRDT- 2021/06/11 12:11
PHST- 2021/06/12 06:00 [pubmed]
PHST- 2021/06/12 06:01 [medline]
PHST- 2021/06/11 12:11 [entrez]
AID - 10.1021/acs.inorgchem.1c01217 [doi]
PST - ppublish
SO  - Inorg Chem. 2021 Jul 5;60(13):9941-9955. doi: 10.1021/acs.inorgchem.1c01217. Epub 
      2021 Jun 11.