Home The Hexakis(N,N'-Dimethylurea)Cobalt(Ii) Cation: A Flexible Building Block for the Construction of Hydrogen Bonded Networks
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The Hexakis(N,N'-Dimethylurea)Cobalt(Ii) Cation: A Flexible Building Block for the Construction of Hydrogen Bonded Networks

  • Giannis S. Papaefstathiou , Robby Keuleers , Constantinos J. Milios , Catherine P. Raptopoulou , Aris Terzis , Herman O. Desseyn and Spyros P. Perlepes EMAIL logo
Published/Copyright: June 2, 2014
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Zeitschrift für Naturforschung B
From the journal Zeitschrift für Naturforschung B Volume 58 Issue 1

Abstract

The ligand N.N'-dimethylurea (DMU) is used to propagate the octahedral coordination geom- etry of [Co(DMU)6]2+ into 1D and 2D assemblies via a combination of coordinative bonds and interionic hydrogen-bonding. Compounds [Co(DMU)6](ClO4)2 (1), [Co(DMU)6](BF4)2 (2) and [Co(DMU)6](NO3)2 (3) have been prepared from the reactions of DMU and the appropriate hydrated cobalt(II) salts in EtOH. MeCN or Me2CO (only for 1) in the presence of 2,2-di- methoxypropane. Crystal structure determinations demonstrate the existence of [Co(DMU)6]2+ cations and CIO4- , BF4- or NO3- counterions. The great stability of the [Co(DMU)6]2+ cation in the solid state is attributed to a pseudochelate effect which arises from the existence of strong intracationic N-H···O(DMU) hydrogen bonds. The [Co(DMU)6]2+ cations and counterions self- assemble to form a hydrogen-bonded ID architecture in 1, and different 2D hydrogen-bonded networks in 2 and 3. The precise nature of the resulting supramolecular structure is influenced by the nature of the counterion. Two main motifs of intermolecular (interionic) hydrogen bonds have been observed: N-H ···O(ClO4-, NO3-) or N-H ··· F(BF4-) and weak C-H F(BF4- ) or C-H-O(NO3- ) hydrogen bonds. The complexes were also characterized by vibrational spec- troscopy (IR, far-IR. low-frequency Raman). The spectroscopic data are discussed in terms of the nature of bonding and the know;n structures.

Keywords: Cobalt(II)/N,N′-Dimethylurea Complexes; Hydrogen-Bonded Coordination Complexes; Vibrational Spectroscopy
Received: 2002-9-9
Published Online: 2014-6-2
Published in Print: 2003-1-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

Articles in the same Issue

  1. Dinuclear Derivatives of Mn2(CO)10 with the Ligand Tri(1-Cyclohepta- 2,4,6-Trienyl)Phosphane, P(C7H7)3, and their Oxidative Cleavage
  2. Synthesis and Reactivity of Bromo-Mer-Tricarbonyl-Trans-Bis[Tri(1-Cyclohepta- 2,4,6-Trienyl)Phosphane]-Manganese, Mnbr(CO)3[P(C7H7)3]2
  3. Transition Metal-Gallium Ordering In HfCoGa2 And HfNiGa2
  4. Metal Directed One-Pot Syntheses: Mono-, Di- and Tetra-Nuclear Clusters [1]
  5. Quadratate Und Hydrogenquadratate Cyclischer Stickstoffbasen Mit Schicht-, Ketten- und Leiterstrukturen / Squarates and Hydrogensquarates of Cyclic Nitrogen Bases with Layer-, Chainand Ladder-Structures
  6. Tungstenmethyl-Dimethylsilanols Cp(Oc)2(R3P)W—CH2—SiMe2OH (R = Me, Ph) – Synthesis Via Oxygenation or Hydrolysis
  7. Reaktionen von Vanadium(V)- und Tantal(V)-Komplexen Mit Kinetisch Stabilisierten Phosphaalkinen. Einfache Synthese von 1,3,4-Thia- und 1,3,4-Selenadiphospholen / Reactions of Vanadium(V) and Tantalum(V)-Complexes with Kinetically Stabilized Phosphaalkynes. A Simple Synthesis of 1,3,4-Thia and 1,3,4-Selenadiphospholes
  8. New Coordination Polymers Based On Transition Metal Squarates And Pyrazine Ligands
  9. Peri-Interactions in Naphthalenes, 9 [1]. On Hypercoordination in Non-Quaternary Phosphonium Salts and a Secondary Phosphine with the (8-Dimethylamino-Naphth-1-Yl) Substituent
  10. The Hexakis(N,N'-Dimethylurea)Cobalt(Ii) Cation: A Flexible Building Block for the Construction of Hydrogen Bonded Networks
  11. Metallkomplexe von Biologisch Wichtigen Liganden, CXLVIII [1]. Katalytische Peptidsynthese aus Glycinester miit Hilfe von Triflaten Und Cloriden der Seltenen Erden, sowie von Metall(III), (IV), (V) und (VI)-Chloriden / Metal Complexes of Biologically Important Ligands, CXLVIII [1]. Synthesis of Peptides from Glycine Ester Catalysed by Triflates and Chlorides of Metal(III, IV, V And VI) Ions
  12. Metallkomplexe mit Biologisch Wichtigen Liganden, CIL [1]. Metallorganische η2-N,O-Lysinato-Komplexe / Metal Complexes Of Biologically Important Ligands, Cil [1]. Organometallic η2-N,O-Lysinato-Complexes
  13. Synthese monofluorierter cyclopropanoider Nucleosidanaloga / Synthesis of Monofluorinated Cyclopropanoic Nucleoside Analogues
  14. Hydroxyurea Analogues of Fosmidomycin
  15. Synthesis of 2-Phenylisothiazol-3(2H)-One 1,1-Dioxides: Inhibitors of Human Leukocyte Elastase
  16. Erratum
  17. The Reduction of Pyridine to 1,4-Dihydropyridine by Lithiumtetrahydroborate in the Presence of Water
  18. Preparation, Crystal and Magnetic Structure of the Double Perovskites Ca2TWO6 (T = Co, Ni)
  19. Hydroboration of Bis(Trimethylsilyl)Ethyne. New Aspects of Hydroboration
  20. Conductivity, Electrodeposition and Magnetic Property of Cobalt(II) and Dysprosium Chloride in Zinc Chloride-1-Ethyl-3-Methylimidazolium Chloride Room Temperature Molten Salt
  21. A Zwitterionic Platinum Complex with a Carbene Ligand
  22. Synthesis and Structural Characterization of the Mixed Ligand Complex [Cu(Hml)2(Phen)] · 2 H2O (H2ml = 2-Methyllactic Acid)
  23. Synthesis, Thermal and X-Ray Investigations of the High-Temperature Phase of Copper(I) Cyanide
  24. Rietveld Refinement of the Crystal Structure of α-Be3N2 and the Experimental Determination of Optical Band Gaps for Mg3N2, Ca3N2 and CaMg2N2
  25. Preparation and Crystal Structure of Hexapotassium-μ-Oxo-Hexathiodititanate(IV), K6Ti2OS6
  26. (Phosphine)Silver(I) Sulfonate Complexes
  27. Beryllium Dichloride Coordination by Nitrogen Donor Molecules
  28. Zur gezielten Synthese funktionell substituierter Oligosilane aus Silyltriflaten und Aminosilyllithiumverbindungen / Tailor-Made Synthesis of Functional Substituted Oligosilanes from Silyl Triflates and (Aminosilyl)Lithium Compounds
  29. Secondary Bonding Interactionsi in Some Di- and Trihaloanilinium Halides
  30. Ba9[NbN4]2O[Cn2] – Synthesis, Crystal Structure and Raman Spectrum
https://doi.org/10.1515/znb-2003-0110
Keywords for this article
Cobalt(II)/N,N′-Dimethylurea Complexes; Hydrogen-Bonded Coordination Complexes; Vibrational Spectroscopy

Articles in the same Issue

  1. Dinuclear Derivatives of Mn2(CO)10 with the Ligand Tri(1-Cyclohepta- 2,4,6-Trienyl)Phosphane, P(C7H7)3, and their Oxidative Cleavage
  2. Synthesis and Reactivity of Bromo-Mer-Tricarbonyl-Trans-Bis[Tri(1-Cyclohepta- 2,4,6-Trienyl)Phosphane]-Manganese, Mnbr(CO)3[P(C7H7)3]2
  3. Transition Metal-Gallium Ordering In HfCoGa2 And HfNiGa2
  4. Metal Directed One-Pot Syntheses: Mono-, Di- and Tetra-Nuclear Clusters [1]
  5. Quadratate Und Hydrogenquadratate Cyclischer Stickstoffbasen Mit Schicht-, Ketten- und Leiterstrukturen / Squarates and Hydrogensquarates of Cyclic Nitrogen Bases with Layer-, Chainand Ladder-Structures
  6. Tungstenmethyl-Dimethylsilanols Cp(Oc)2(R3P)W—CH2—SiMe2OH (R = Me, Ph) – Synthesis Via Oxygenation or Hydrolysis
  7. Reaktionen von Vanadium(V)- und Tantal(V)-Komplexen Mit Kinetisch Stabilisierten Phosphaalkinen. Einfache Synthese von 1,3,4-Thia- und 1,3,4-Selenadiphospholen / Reactions of Vanadium(V) and Tantalum(V)-Complexes with Kinetically Stabilized Phosphaalkynes. A Simple Synthesis of 1,3,4-Thia and 1,3,4-Selenadiphospholes
  8. New Coordination Polymers Based On Transition Metal Squarates And Pyrazine Ligands
  9. Peri-Interactions in Naphthalenes, 9 [1]. On Hypercoordination in Non-Quaternary Phosphonium Salts and a Secondary Phosphine with the (8-Dimethylamino-Naphth-1-Yl) Substituent
  10. The Hexakis(N,N'-Dimethylurea)Cobalt(Ii) Cation: A Flexible Building Block for the Construction of Hydrogen Bonded Networks
  11. Metallkomplexe von Biologisch Wichtigen Liganden, CXLVIII [1]. Katalytische Peptidsynthese aus Glycinester miit Hilfe von Triflaten Und Cloriden der Seltenen Erden, sowie von Metall(III), (IV), (V) und (VI)-Chloriden / Metal Complexes of Biologically Important Ligands, CXLVIII [1]. Synthesis of Peptides from Glycine Ester Catalysed by Triflates and Chlorides of Metal(III, IV, V And VI) Ions
  12. Metallkomplexe mit Biologisch Wichtigen Liganden, CIL [1]. Metallorganische η2-N,O-Lysinato-Komplexe / Metal Complexes Of Biologically Important Ligands, Cil [1]. Organometallic η2-N,O-Lysinato-Complexes
  13. Synthese monofluorierter cyclopropanoider Nucleosidanaloga / Synthesis of Monofluorinated Cyclopropanoic Nucleoside Analogues
  14. Hydroxyurea Analogues of Fosmidomycin
  15. Synthesis of 2-Phenylisothiazol-3(2H)-One 1,1-Dioxides: Inhibitors of Human Leukocyte Elastase
  16. Erratum
  17. The Reduction of Pyridine to 1,4-Dihydropyridine by Lithiumtetrahydroborate in the Presence of Water
  18. Preparation, Crystal and Magnetic Structure of the Double Perovskites Ca2TWO6 (T = Co, Ni)
  19. Hydroboration of Bis(Trimethylsilyl)Ethyne. New Aspects of Hydroboration
  20. Conductivity, Electrodeposition and Magnetic Property of Cobalt(II) and Dysprosium Chloride in Zinc Chloride-1-Ethyl-3-Methylimidazolium Chloride Room Temperature Molten Salt
  21. A Zwitterionic Platinum Complex with a Carbene Ligand
  22. Synthesis and Structural Characterization of the Mixed Ligand Complex [Cu(Hml)2(Phen)] · 2 H2O (H2ml = 2-Methyllactic Acid)
  23. Synthesis, Thermal and X-Ray Investigations of the High-Temperature Phase of Copper(I) Cyanide
  24. Rietveld Refinement of the Crystal Structure of α-Be3N2 and the Experimental Determination of Optical Band Gaps for Mg3N2, Ca3N2 and CaMg2N2
  25. Preparation and Crystal Structure of Hexapotassium-μ-Oxo-Hexathiodititanate(IV), K6Ti2OS6
  26. (Phosphine)Silver(I) Sulfonate Complexes
  27. Beryllium Dichloride Coordination by Nitrogen Donor Molecules
  28. Zur gezielten Synthese funktionell substituierter Oligosilane aus Silyltriflaten und Aminosilyllithiumverbindungen / Tailor-Made Synthesis of Functional Substituted Oligosilanes from Silyl Triflates and (Aminosilyl)Lithium Compounds
  29. Secondary Bonding Interactionsi in Some Di- and Trihaloanilinium Halides
  30. Ba9[NbN4]2O[Cn2] – Synthesis, Crystal Structure and Raman Spectrum
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