Novel Polynuclear Nickel(II) Complex: Hydrazine, Sulfato, and Hydroxo Bridging in an Unusual Metal Hexamer. Crystal Structure and Magnetic Properties of [Ni6(N2H4)6(SO4)4(OH)2(H2O)8](SO4)(H2O)10

Gustafsson, Magnus; Fischer, Andreas; Maliarik, Mikhail; Nordblad, Per

doi:10.1021/ic100648c

Cited by 21 publications

(7 citation statements)

References 16 publications

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“…Similar magnetic bridging, as found recently in the case of other Co and Ni compounds [7,8], can be supposed for the exchange interaction in FePc, too. Magnetic interactions have already been shown in Tb-Pc or Dy-Pc single-molecular magnets [9].…”

Section: Introductionsupporting

confidence: 86%

“…Consequently, the long chains of peroxo-bridged irons can be found in the vicinity of each other. Such chains may mediate exchange coupling between the irons like in the case of Ni or Co ions in polynuclear complexes [7,8]. 5) even when higher amount of oxygen could be introduced [6] between the stacks of Pc than in the case of the dry oxygenation.…”

Section: Resultsmentioning

confidence: 99%

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Magnetic interaction in oxygenated alpha Fe-phthalocyanines

Кузманн

Pěchoušek

Čuda

et al. 2014

AIP Conference Proceedings

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Abstract. Alpha iron phthalocyanines ( -FePc) oxygenated at low temperatures were investigated with the help of 57 Fe Mössbauer spectroscopy, magnetization measurements (SQUID) and X-ray diffractometry (XRD). Mössbauer spectroscopy revealed that upon oxygenation of -FePc, new species were formed which could be associated with Fe III Pc oxygen adducts. Unexpectedly, magnetically split spectrum of oxygenated -FePc was observed below 20 K. In-field Mössbauer spectra in a 5 T external magnetic field at 5K and magnetization measurements indicate antiferromagnetic coupling in oxygenated -FePc.

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Section: Introductionsupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Magnetic interaction in oxygenated alpha Fe-phthalocyanines

Кузманн

Pěchoušek

Čuda

et al. 2014

AIP Conference Proceedings

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“…It has been suggested that multinuclear nickel complexes are relatively well‐known for exhibiting magnetic interactions that are antiferro‐ or ferromagnetic in nature . In these complexes, controlling the interactions among the metal ions provides a way to organize the overall spin ground state.…”

Section: Introductionmentioning

confidence: 99%

Carboxylate Bridge Controlled Formation of Tetra‐ and Pentanuclear Nickel(II) Complexes: Synthesis, Crystal Structure, Spectroscopy and Magnetic Properties

et al. 2019

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A carboxyamine functionalized tridentate ligand in combination with three different carboxylate bridging groups (RCO 2 À ; R = CH 3 , C 2 H 5 and CF 3 ) has been utilized to prepare tetra-and pentanuclear nickel(II) complexes, [Ni 4 (CC 2 H 5 ) 2 (CH 3 OH) 2 ] (2) and [Ni 5 (L) 4 (μ 3 -OH) 2 (μ 1,3 -O 2 CCF 3 ) 2 ]Br 2 ⋅3H 2 O (3) (HL = 3-[(2-pyridylmethyl)-amino]-propionic acid). The complexes have been characterized using several techniques such as elemental analysis, solution electrical conductivity, FTIR and UV-Vis spectroscopy, and low temperature magnetic measurements. While complex 1 and 3 were further characterized using single crystal X-ray diffraction, molecular structure of complex 2 has been optimized using DFT calculation. Whereas the acetate/propionate groups deliver Ni 4 cluster, the trifluoroacetate group provides Ni 5 assembly. Molecular structures of complexes 1 and 2 comprise a central [Ni 4 O 6 ] core that could be described as a distorted face-shared dicubane with two missing vertices. On the other hand, the [Ni 5 (μ 3 -OH) 2 (μ 1,3 -O 2 CCF 3 ) 2 ] 6 + structural core of complex 3 contains five coplanar nickel(II) ions in a rectangular organization. Variable-temperature magnetic susceptibility studies reveal the interesting magnetic properties of complexes 1 and 3. While complex 1 shows both ferro-and antiferromagnetic interactions with J 1 = À 1.10 cm À 1 , J 2 = + 2.40 cm À 1 and J 3 = À 0.65 cm À 1 , complex 3 exhibits only ferromagnetic interactions with J 1 = + 2.0 cm À 1 and J 2 = + 1.0 cm À 1 .

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“…Polymeric complexes containing bridging ligands have received attention because of their interesting molecular topologies and the fact that they may be designed with specific functionalities [1][2][3]. Azide and thiocyanate act as bridging ligands between metallic centers [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structures, and fluorescence of azido-bridged dinuclear and thiocyanato-bridged tetranuclear cadmium(II) complexes derived from N-isopropyl-N′-(1-pyridin-2-ylethylidene)ethane-1,2-diamine

Zhang

Xian

Zhang

et al. 2012

Journal of Coordination Chemistry

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2012) Synthesis, structures, and fluorescence of azido-bridged dinuclear and thiocyanato-bridged tetranuclear cadmium(II) complexes derived from N-isopropyl-N′-(1-pyridin-2-ylethylidene)ethane-1,2-diamine, A new azido-bridged dinuclear cadmium(II) complex [Cd 2 L 2 ( 1,1 -N 3 ) 2 (ONO 2 ) 2 ] (1) and a new thiocyanato-bridged tetranuclear cadmium(II) complex [Cd 4 L 4 ( 1,3 -NCS) 4 (NCS) 4 ] (2), where L is the tridentate Schiff base N-isopropyl-N 0 -(1-pyridin-2-ylethylidene)ethane-1,2-diamine, were prepared and characterized. X-ray single crystal structure determination reveals that 1 is a centrosymmetric end-on azido-bridged dinuclear cadmium(II) compound and 2 is a rarely seen centrosymmetric end-to-end thiocyanato-bridged tetranuclear cadmium(II) compound. Cd in each complex is in distorted octahedral coordination. In the crystal structure of 1, the dinuclear cadmium(II) molecules are linked through N-H Á Á Á O hydrogen bonds to form a 3-D network. In the crystal structure of 2, the tetranuclear cadmium(II) complex molecules are linked through N-H Á Á Á S hydrogen bonds to form 1-D chains. The thermal stability and preliminary fluorescence properties of the complexes were investigated.

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Novel Polynuclear Nickel(II) Complex: Hydrazine, Sulfato, and Hydroxo Bridging in an Unusual Metal Hexamer. Crystal Structure and Magnetic Properties of [Ni₆(N₂H₄)₆(SO₄)₄(OH)₂(H₂O)₈](SO₄)(H₂O)₁₀

Cited by 21 publications

References 16 publications

Magnetic interaction in oxygenated alpha Fe-phthalocyanines

Magnetic interaction in oxygenated alpha Fe-phthalocyanines

Carboxylate Bridge Controlled Formation of Tetra‐ and Pentanuclear Nickel(II) Complexes: Synthesis, Crystal Structure, Spectroscopy and Magnetic Properties

Synthesis, structures, and fluorescence of azido-bridged dinuclear and thiocyanato-bridged tetranuclear cadmium(II) complexes derived from N-isopropyl-N′-(1-pyridin-2-ylethylidene)ethane-1,2-diamine

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