New magnetic frameworks of [(CuF2(H2O)2)(x)(pyz)].

نویسندگان

  • A Lanza
  • C Fiolka
  • M Fisch
  • N Casati
  • M Skoulatos
  • C Rüegg
  • K W Krämer
  • Piero Macchi
چکیده

Pressure-driven orbital reordering in the quantum magnet [CuF2(H2O)2(pyz)], (pyz = pyrazine), dramatically affects its magnetic exchange interactions. The crystal chemistry of this system is enriched with a new phase above 3 GPa, surprisingly concomitant with other polymorphs. Moreover, we discovered an unprecedented compound with a different stoichiometry, [(CuF2(H2O)2)2(pyz)], featuring magnetic bi-layers.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Synthesis of mixed-valence hexanuclear Mn(II/III) clusters from its Mn(II) precursor: variations of catecholase-like activity and magnetic coupling.

One Mn(II) coordination polymer, [Mn(o-(NO2)C6H4COO)2(pyz)(H2O)]n (1), has been synthesized and oxidized with n-Bu4NMnO4 in non-aqueous media to two mixed-valence hexanuclear Mn(II/III) complexes [MnIII2MnII4O2(pyz)0.61/(MeOH)0.39(o-(NO2)C6H4COO)10·(H2O)·{(CH3)2CO}2]·(CH3)2CO (2) and [MnIII2MnII4O2(pyz)0.28/(MeCN)3.72(o-(NO2)C6H4COO)10·(H2O)] (3) (where pyz = pyrazine). All three complexes were...

متن کامل

Orientational order of [ VOF 5 ] 2 and [ NbOF 5 ] 2 polar units in chains

The generation of polarity in the solid state necessitates ordered, polar basic-building units (BBUs). This paper examines the evolution of ordered BBUs of 1D chains constructed of early transition metals (ETMs) and late transition metals. The cause of polar distortion orientation is illustrated with subtle alterations in the heterotypic structures of one previously reported compound (CuNbOF5(H...

متن کامل

Understanding the role of helical chains in the formation of noncentrosymmetric solids.

A general, new principle for the design of noncentrosymmetric solids is evident in the packing of helical metal-oxyfluoride chains in Zn(C4H4N2)(H2O)2MoO2F4 (C4H4N2 ) pyrazine, pyz). Each inorganic helical chain comprises alternating Znand Mocentered octahedra and interleaves with six more helices of the same handedness through Zn-pyrazine-Zn bridges. From comparisons with similar structures wh...

متن کامل

Syntheses, structures and magnetic properties of a family of metal carboxylate polymers via in situ metal-ligand reactions of benzene-1,2,3-tricarboxylic acid.

Nine new coordination polymers: [Cu3(ipO),(pyz)2](5), [Cu3(ipO)2(4-phpy)(H2O)2](6), [Cu(ip)(4-phpy)2] (7), [Cu3(ipO)2(H2O)2](8), [Co(phen)(ip)(H2O)](9), [Co3(1,2,3-btc)2(4,4'-bpy)2(H2O)2].2H2O(10), [Ni(1,2,3-btcH)(4,4'-bpy)(H2O)].H2O(11), [Cd5(1,2,3-btc),(1,2,3-btcH)2(4,4'-bpy)3(H2O)2] (12) and (1,2,3-btcH3)(4,4'-bpy) (13)(1,2,3-btcH3 = 1,2,3-benzenetricarboxylic acid, ipO = 2-hydroxyisophthala...

متن کامل

Strong H...F hydrogen bonds as synthons in polymeric quantum magnets: structural, magnetic, and theoretical characterization of [Cu(HF2)(pyrazine)2]SbF6, [Cu2F(HF)(HF2)(pyrazine)4](SbF6)2, and [CuAg(H3F4)(pyrazine)5](SbF6)2.

Three Cu(2+)-containing coordination polymers were synthesized and characterized by experimental (X-ray diffraction, magnetic susceptibility, pulsed-field magnetization, heat capacity, and muon-spin relaxation) and electronic structure studies (quantum Monte Carlo simulations and density functional theory calculations). [Cu(HF(2))(pyz)(2)]SbF(6) (pyz = pyrazine) (1a), [Cu(2)F(HF)(HF(2))(pyz)(4)...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Chemical communications

دوره 50 93  شماره 

صفحات  -

تاریخ انتشار 2014