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Importance of Orbital Complementarity in Spin Coupling through Two Different Bridging Groups. Synthesis, Crystal Structure, Magnetic Properties and Magneto-Structural Correlations in a Dicopper(II) Complex of Endogenous Alkoxo Bridging Ligand with Exogenous Pyrazolate

  • Y. Elerman EMAIL logo , H. Karab and A. Elmali
Published/Copyright: June 2, 2014
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Zeitschrift für Naturforschung B
From the journal Zeitschrift für Naturforschung B Volume 56 Issue 11

[Cu2(L3)(3,5-prz)] (L3 = 1,3-bis(2-hydroxy-4-methoxybenzylideneamino)-propan-2-ol) (3) was synthesized and its crystal structure determined. The compound consists of discrete binuclear units, in which copper atoms are linked by the alkoxide oxygen atom of the ligand and the pyrazolate nitrogen atoms. Variable-temperature magnetic susceptibility measurements for a powdered sample of the complex were carried out in the temperature range 4.4 - 308 K and analysed to obtain values of the parameter J in the exchange Hamiltonian H = -2JS1-S2. Recently, the dicopper(II) complexes [Cu2(L1)(3,5-prz)] (L1 = 1,3-bis(2-hydroxy-1-napthylideneamino)- propan-2-ol) (1) and [Cu2(L2)(3,5-prz)], (L2 = 1,3-bis(2-hydroxy-5-chlorosalicylideneamino)- propan-2-ol) (2) were reported. These compounds show antiferromagnetic behaviour (-2J: 444 cm-1 for 1 164 cm-1 for 2, and 472 cm-1 for 3). The strength of the super-exchange interaction (-2J) of 2 is much less than that of 1 and 3, a result which is difficult to explain in terms of structural factors on the basis of widely accepted criteria. The differences in the magnetic behaviour have been rationalized in terms of the bridging ligand orbital complementary / countercomplementary concept.

Keywords: Binuclear Copper(II) Complex; Super-Exchange Interactions; Antiferromagnetic Coupling
Received: 2001-7-18
Published Online: 2014-6-2
Published in Print: 2001-11-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

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  1. Structure Determination for the Crystalline Phase of Triphenyl Phosphite by Means of Multi-Dimensional Solid-State NMR and X-Ray Diffraction
  2. Amido-tert-butylimido-vanadium(V)-Verbindungen. Darstellung, Reaktionen und 51V-NMR-spektroskopische Untersuchungen / Amido-tert-butylimidovanadium(V) Compounds. Synthesis, Reactions and 51V NMR Spectroscopic Studies
  3. peri-Interactions in Naphthalenes, 5 [1]. On the Impact of peri-Stress and Trityl-Stress upon the Length of N+-C Bonds in 1-Azonia-acenaphthene Cations
  4. [Co(NH3)6]C1C03 - ein Hexaammincobalt(III)-Komplex mit einer ‘idealen’ Carbonat-Gruppe / [Co(NH3)6]C1C03 - a Hexaamminecobalt(III) Complex with an ‘Ideal’ Carbonate Group
  5. Crystal Structure and Magnetic Properties of an Oxygen-Bridged Trinuclear Copper(II) Complex
  6. Importance of Orbital Complementarity in Spin Coupling through Two Different Bridging Groups. Synthesis, Crystal Structure, Magnetic Properties and Magneto-Structural Correlations in a Dicopper(II) Complex of Endogenous Alkoxo Bridging Ligand with Exogenous Pyrazolate
  7. Thermal Catalytic Hydrosilylation of Conjugated Dienes with Triethylsilane in the Presence of Tricarbonyl(o-xylene)Metal (Metal = Cr, Mo, W) Complexes
  8. Preparation, Properties, and Crystal Structure of Quaternary Silicide Carbides RCr2Si2C (R = Y, La - Nd, Sm, Gd - Ho)
  9. CsCu3Dy2S5 und CsCu3Er2S5 : Zwei isotype quaternäre Sulfide der Lanthanoide mit Kanalstrukturen / CsCu3Dy2S5 and CsCu3Er2S5: Two Isotypic Quaternary Sulfides of the Lanthanides with Channel Structures
  10. Donor-Acceptor Complexes between Simple Phosphines. First Structural Data for an Almost Forgotten Class of Compounds
  11. Donor-Acceptor Complexes between Organoamines and Phosphorus Tribromide
  12. Orthoamides, LVI [1]. A New Method of Wide Scope for the Preparation of Aryl Formates
  13. Orthoamide, LVII [1]. Lassen sich aromatische Aldehyde nach Fries aus Arylformiaten hersteilen? / Orthoamides, LVII [1]. Can Aromatic Aldehydes be Prepared from Aryl Formates via the Fries Rearrangement?
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  15. Einige Umsetzungen von Inhydrazinen mit Isocyanaten: [2+2]- und [4+2]Cycloadditionen, (Hydrazinoethinyl)metallierung / Some Reactions of Ynehydrazines with Isocyanates: [2+2]- and [4+2]Cycloadditions, (Hydrazinoethynyl)metallation
  16. Structural Influence of Hydrogen Bonding and π-Stacking in trans-Diazido-tetrakis( pyrazole)nickel(II) and trans-Diazido-tetrakis(3-methylpyrazoIe)nickel(II)
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  19. Facile Approach to Versatile Chiral Intermediates for Fused Cyclopentanoid Natural Products
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  21. Interpenetrierende Clusterstränge in der Kristallstruktur von K0,77Nb6Cl15 / Interpenetrating Cluster Chains in the Structure of K0.77Nb6Cl15
  22. Synthesis and Structure of RE2Rh2Cd (RE = La, Ce, Pr, Nd, Sm)
https://doi.org/10.1515/znb-2001-1106
Keywords for this article
Binuclear Copper(II) Complex; Super-Exchange Interactions; Antiferromagnetic Coupling

Articles in the same Issue

  1. Structure Determination for the Crystalline Phase of Triphenyl Phosphite by Means of Multi-Dimensional Solid-State NMR and X-Ray Diffraction
  2. Amido-tert-butylimido-vanadium(V)-Verbindungen. Darstellung, Reaktionen und 51V-NMR-spektroskopische Untersuchungen / Amido-tert-butylimidovanadium(V) Compounds. Synthesis, Reactions and 51V NMR Spectroscopic Studies
  3. peri-Interactions in Naphthalenes, 5 [1]. On the Impact of peri-Stress and Trityl-Stress upon the Length of N+-C Bonds in 1-Azonia-acenaphthene Cations
  4. [Co(NH3)6]C1C03 - ein Hexaammincobalt(III)-Komplex mit einer ‘idealen’ Carbonat-Gruppe / [Co(NH3)6]C1C03 - a Hexaamminecobalt(III) Complex with an ‘Ideal’ Carbonate Group
  5. Crystal Structure and Magnetic Properties of an Oxygen-Bridged Trinuclear Copper(II) Complex
  6. Importance of Orbital Complementarity in Spin Coupling through Two Different Bridging Groups. Synthesis, Crystal Structure, Magnetic Properties and Magneto-Structural Correlations in a Dicopper(II) Complex of Endogenous Alkoxo Bridging Ligand with Exogenous Pyrazolate
  7. Thermal Catalytic Hydrosilylation of Conjugated Dienes with Triethylsilane in the Presence of Tricarbonyl(o-xylene)Metal (Metal = Cr, Mo, W) Complexes
  8. Preparation, Properties, and Crystal Structure of Quaternary Silicide Carbides RCr2Si2C (R = Y, La - Nd, Sm, Gd - Ho)
  9. CsCu3Dy2S5 und CsCu3Er2S5 : Zwei isotype quaternäre Sulfide der Lanthanoide mit Kanalstrukturen / CsCu3Dy2S5 and CsCu3Er2S5: Two Isotypic Quaternary Sulfides of the Lanthanides with Channel Structures
  10. Donor-Acceptor Complexes between Simple Phosphines. First Structural Data for an Almost Forgotten Class of Compounds
  11. Donor-Acceptor Complexes between Organoamines and Phosphorus Tribromide
  12. Orthoamides, LVI [1]. A New Method of Wide Scope for the Preparation of Aryl Formates
  13. Orthoamide, LVII [1]. Lassen sich aromatische Aldehyde nach Fries aus Arylformiaten hersteilen? / Orthoamides, LVII [1]. Can Aromatic Aldehydes be Prepared from Aryl Formates via the Fries Rearrangement?
  14. Polysulfonylamine, CXLVII [1]. Die ersten N,N-disulfonylierten Thioharnstoffe: Synthese von (RSO2)2N-C(S)-NMe2 (R = Me, 4-Me-C6H4) und Kristallstruktur der Ditosylverbindung / Polysulfonylamines, CXLVII [1]. The First N,N-Disulfonylated Thioureas: Synthesis of (RSO2)2N-C(S)-NMe2 (R = Me, 4-Me-C6H4) and Crystal Structure of the Ditosyl Compound
  15. Einige Umsetzungen von Inhydrazinen mit Isocyanaten: [2+2]- und [4+2]Cycloadditionen, (Hydrazinoethinyl)metallierung / Some Reactions of Ynehydrazines with Isocyanates: [2+2]- and [4+2]Cycloadditions, (Hydrazinoethynyl)metallation
  16. Structural Influence of Hydrogen Bonding and π-Stacking in trans-Diazido-tetrakis( pyrazole)nickel(II) and trans-Diazido-tetrakis(3-methylpyrazoIe)nickel(II)
  17. 7-Azoniafluorenonderivate durch elektrostatisch aktivierte SNAr-Reaktionen / 7-Azoniafluorenone Derivatives by Electrostatically Activated SNAr-Reactions
  18. Palladium(II) and Platinum(II) Complexes of N-3-Pyridinylmethanesulfonamide
  19. Facile Approach to Versatile Chiral Intermediates for Fused Cyclopentanoid Natural Products
  20. Nukleophile Aromatische Substitution an 2-Fluoroimidazolium-Ionen: Synthese und Kristallstruktur eines dikationischen 2,2-Biimidazolyl- Derivates [1] / Nucleophilic Aromatic Substitution at 2-Fluoroimidazolium Ions: Synthesis and Crystal Structure of a Dicationic 2,2′-Biimidazolyl Derivative [1]
  21. Interpenetrierende Clusterstränge in der Kristallstruktur von K0,77Nb6Cl15 / Interpenetrating Cluster Chains in the Structure of K0.77Nb6Cl15
  22. Synthesis and Structure of RE2Rh2Cd (RE = La, Ce, Pr, Nd, Sm)
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