Toward Ligand-Driven Light-Induced Spin Changing. Influence of the Configuration of 4 Styrylpyridine (stpy) on the Magnetic Properties of FeII(stpy)4(NCS)2 Complexes. Crystal Structures of the Spin-Crossover Species Fe(trans-stpy)4(NCS)2 and of the High-Spin Species Fe(cis-stpy)4(NCS)2

1994 ◽  
Vol 33 (10) ◽  
pp. 2273-2279 ◽  
Author(s):  
Cecile Roux ◽  
Jacqueline Zarembowitch ◽  
Bernard Gallois ◽  
Thierry Granier ◽  
Renee Claude
Keyword(s):  
Magnetic Properties ◽  
Crystal Structures ◽  
High Spin ◽  
Spin Crossover ◽  
Spin Species

scholarly journals Cooperative formation of high-spin species in a photoexcited spin-crossover complex

2006 ◽  
Vol 73 (1) ◽  
Author(s):  
Y. Moritomo ◽  
M. Kamiya ◽  
A. Nakamura ◽  
A. Nakamoto ◽  
N. Kojima
Keyword(s):  
High Spin ◽  
Spin Crossover ◽  
Spin Species

Substituted phenanthrolines and their metal chelates

1973 ◽  
Vol 26 (5) ◽  
pp. 951 ◽  
Author(s):  
EJ Halbert ◽  
CM Harris ◽  
E Sinn ◽  
GJ Sutton
Keyword(s):  
Magnetic Properties ◽  
High Spin ◽  
Copper Complex ◽  
Magnetic Moment ◽  
Room Temperature ◽  
Spin Crossover ◽  
Metal Chelates ◽  
One Step

Substituents at and adjacent to the nitrogen atoms in 2,2?-bipyridyl and 1,10-phenanthroline are most likely to cause drastic changes in the magnetic properties of complexes with these ligands. Complexes of the N-oxides (2,2?-bipyridine 1,1?-dioxide, and 1,10-phenanthroline 1- oxide) with copper, and of 2-substituted phen (substituent = Cl, CONH2) with iron(II) are investigated, and a new one-step reaction to convert phno into cphn is reported. The copper complex Cu(bpyo)Br2 shows antiferromagnetic interactions, but other complexes Cu(bpyo)X2 (X = Cl, NO3) with this ligand are magnetically normal, as are Cu(phno)Cl2 and Cu(phno)Br2. The complex [Fe(cphn)3] (ClO4)2 lies near the high spin-low spin crossover for iron(II), and its magnetic moment is normal at room temperature but falls with decreasing temperature. The dioxide of phen appears not to be formed by the literature method and no successful synthesis can be reported here.

Light- and Thermal-Induced Spin Crossover in {Fe(abpt)2[N(CN)2]2}. Synthesis, Structure, Magnetic Properties, and High-Spin ↔ Low-Spin Relaxation Studies

2001 ◽  
Vol 40 (16) ◽  
pp. 3986-3991 ◽  
Author(s):  
Nicolás Moliner ◽  
Ana B. Gaspar ◽  
M. Carmen Muñoz ◽  
Virginie Niel ◽  
Joan Cano ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
High Spin ◽  
Spin Relaxation ◽  
Spin Crossover ◽  
Relaxation Studies

scholarly journals Synthesis, Crystal Structures and Magnetic Properties of Mononuclear High-Spin Cobalt(II) Complex

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 87 ◽  
Author(s):  
Mohd. Muddassir ◽  
You Song
Keyword(s):  
Magnetic Properties ◽  
Crystal Structures ◽  
High Spin ◽  
Magnetic Behavior ◽  
One Dimension ◽  
Diffusion Method

A new four-coordinated high-spin Co(II) complex was synthesized through the reactions of Co(NSC)2 with bathocuproine, by the diffusion method, resulting in an infinite one-dimension chain. Both static and dynamic magnetic properties were measured. The magnetic properties investigation shows that the single CoII ion properties dominate the magnetic behavior in the complex. Despite the presence of a four-coordinated single CoII ion, no SMM properties were exhibited by the complex.

Trapping of metastable high-spin species and weak cooperativity in a mononuclear Fe(II) spin-crossover system

2003 ◽  
Vol 64 (6) ◽  
pp. 1003-1013 ◽  
Author(s):  
O Roubeau ◽  
M deVos ◽  
A.F Stassen ◽  
R Burriel ◽  
J.G Haasnoot ◽  
...  
Keyword(s):  
High Spin ◽  
Spin Crossover ◽  
Spin Species

scholarly journals Steric Quenching of Mn(III) Thermal Spin Crossover: Dilution of Spin Centers in Immobilized Solutions

2022 ◽  
Vol 8 (1) ◽  
pp. 8
Author(s):  
Komala Pandurangan ◽  
Anthony B. Carter ◽  
Paulo N. Martinho ◽  
Brendan Gildea ◽  
Tibebe Lemma ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Structural Analysis ◽  
High Spin ◽  
Spin State ◽  
Spin Crossover ◽  
High Spin State ◽  
Spectroscopic Studies ◽  
Raman Spectroscopic ◽  
Spin Triplet ◽  
Structural And Magnetic Properties

Structural and magnetic properties of a new spin crossover complex [Mn(4,6-diOMe-sal2323)]+ in lattices with ClO4−, (1), NO3−, (2), BF4−, (3), CF3SO3−, (4), and Cl− (5) counterions are reported. Comparison with the magnetostructural properties of the C6, C12, C18 and C22 alkylated analogues of the ClO4− salt of [Mn(4,6-diOMe-sal2323)]+ demonstrates that alkylation effectively switches off the thermal spin crossover pathway and the amphiphilic complexes are all high spin. The spin crossover quenching in the amphiphiles is further probed by magnetic, structural and Raman spectroscopic studies of the PF6− salts of the C6, C12 and C18 complexes of a related complex [Mn(3-OMe-sal2323)]+ which confirm a preference for the high spin state in all cases. Structural analysis is used to rationalize the choice of the spin quintet form in the seven amphiphilic complexes and to highlight the non-accessibility of the smaller spin triplet form of the ion more generally in dilute environments. We suggest that lattice pressure is a requirement to stabilize the spin triplet form of Mn3+ as the low spin form is not known to exist in solution.

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