Solvatomorphism, polymorphism and spin crossover in bis[hydrotris(1,2,3-triazol-1-yl)borate]iron(<scp>ii</scp>)

نویسندگان

چکیده

We describe a detailed characterization of the spin crossover bis[hydrotris(1,2,3-triazol-1-yl)borate]iron( ii ) complex ([Fe(HB(1,2,3-tz) 3 2 ]) and solvatomorphs obtained by recrystallisation or single crystal to transformation.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Solvent-Induced Polymorphism of Iron(II) Spin Crossover Complexes

Two new mononuclear iron(II) compounds (1) and (2) of the general formula [Fe(L)₂](BF₄)₂·nCH₃CN (L = 4-(2-bromoethyn-1-yl)-2,6-bis(pyrazol-1-yl)pyridine, n = 1 for (1) and n = 2 for compound (2)), were synthesized. The room temperature crystallization afforded concomitant formation of two different solvent analogues: compound (1) exhibiting triclinic P-1 and compound (2) monoclinic C2/c symmetr...

متن کامل

Antiferromagnetic spin ladders: Crossover between spin S=1/2 and S=1 chains.

We study a model of two weakly coupled isotropic spin-1/2 Heisenberg chains with an antiferromagnetic coupling along the chains (spin ladder). It is shown that the system always has a spectral gap. For the case of identical chains the model in the continuous limit is shown to be equivalent to four decoupled non-critical Ising models with the Z 2 ×SU(2)-symmetry. For this case we obtain the exac...

متن کامل

Unprecedented bistability domain and interplay between spin crossover and polymorphism in a mononuclear iron(II) complex.

A mononuclear complex, [FeL2](BF4)2·xH2O (1LS∙xH2O), where L is 4-(3,5-dimethyl-1H-pyrazol-1-yl)-2-(pyridin-2-yl)-6-methylpyrimidine, can be converted into several phases showing different spin crossover regimes. In the first heating 1LS∙xH2O loses water molecules and converts into a mixture of two high spin phases, 1A/HS and 1C/HS. Further cycling produces the low spin phase 1A/LS. The transit...

متن کامل

Quantum-classical crossover in the spin 1/2 XXZ chain

We compute, by means of exact diagonalization of systems of N = 16 and 18 spins, the correlation function < σz 0σ z n > at nonzero temperature for the XXZ model with anisotropy ∆. In the gapless ferromagnetic region −1 < ∆ < 0 for fixed separation the temperature can always be made sufficiently low so that the correlation is always negative. However we find that for sufficiently large temperatu...

متن کامل

Polymorphism and spin crossover in mononuclear Fe(II) species containing new dipyridylamino-substituted s-triazine ligands.

Four new dipyridylamino-substituted s-triazine ligands DBB (N(2),N(2),N(4),N(4)-tetrabenzyl-N(6),N(6)-di(pyridin-2-yl)-1,3,5-triazine-2,4,6-triamine), DDB (N(2),N(2),N(4),N(4)-tetrabutyl-N(6),N(6)-di(pyridin-2-yl)-1,3,5-triazine-2,4,6-triamine), DCCl (6-chloro-N(2),N(2)-dicyclohexyl-N(4),N(4)-di(pyridin-2-yl)-1,3,5-triazine-2,4-diamine) and DDT (N(2),N(2),N(4),N(4)-tetraphenyl-N(6),N(6)-di(pyri...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: New Journal of Chemistry

سال: 2022

ISSN: ['1369-9261', '1144-0546']

DOI: https://doi.org/10.1039/d2nj01471h