Manganese(II) coordination polymer with simultaneous azide, tetrazolate and carboxylate bridges: Synthesis, structure and magnetism

Abstract. In whatever state of bonding -whether covalent to an organic residue or a heteroatom, or polar to ionic in contact with a metal -the azide moiety N 3 is characterized by its high potential of reactivity which essentially manifests itself in two basic processes: the elimination of dinitrogen and the entry into 1,3-dipolar cycloadditions with suitable dipolarophiles, the latter of which clearly predominates the chemistry of azide, also that of its metal compounds. In a preceding review entitled "Part I -Metal Azides: Overview, General Trends and Recent Developments" which was meant to lay the foundations for the present paper, these and other reactions have already been touched upon. The present review -Part II -now focusses in great detail on the formation of five-membered heterocyclestetrazol(at)es, triazol(at)es, triazolin(at)es, thiatriazol(at)es, etc. as well as various consecutive products -from azide and nitriles, isocyanides, alkynes, alkenes and heteroallenes (CS 2 , RN=C=S) in the ligand sphere of the metal. Generally, these [3+2]-cycloadditions are found to CONTENTS

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“…Scheme 8). [252] Scheme 9. Frequently employed co-ligands for the design of specific material properties (cf.…”

Section: 8)mentioning

confidence: 99%

Azide Chemistry – An Inorganic Perspective, Part II^[‡][3+2]‐Cycloaddition Reactions of Metal Azides and Related Systems

Fehlhammer

Beck

2015

Zeitschrift anorg allge chemie

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“…Recently, We have obtained some compounds with azide and carboxylate simultaneously by employing the zwitterionic carboxylates ligands bearing cationic pyridinium and anionic carboxylate groups. These compounds exhibit SCM-type slow relaxation, solvent-modulated SCM behaviors and the coexistence of metamagnetism, antiferromagnetism, and SCM dynamics [11][12][13][14][15][16][17][18][19][20]. And the use of zwitterionic ligands, in comparison with the usual anionic carboxylates or hydroxo is an efficient synthetic approach toward 1D coordination motifs with mixed bridges.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structure and magnetism of two metal(II) compounds based on two new zwitterionic ligands

Liu

Gao

Zhang

et al. 2016

Inorganica Chimica Acta

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Two coordination polymers, [Co(L1)0.5(N3)2]n•3nH2O (1), [Cu3(OH)3(L2)3(H2O)1.5]n•nH2O (2), (H2L1 = 1,4-bis(4-carboxylatopyridinium-4-benzoate-1-methylene)benzene, HL2 = 4-(4-oxypyridinium-1-yl)benzotetrazolate) have been synthesized and studied by means of X-ray crystallography and magnetic analyses. Compound 1 exhibits a 2D braided grid structure, in which 1D [Co(N3)2(COO)]n chains are cross-linked by the cationic bis(pyridinium) spacers of the L1 ligand. Compound 2 is a 1D coordination chain in which the Cu(II) ions are linked by the mixed (µ-OH)(µ-N, N-tetrazolate) double bridges. The mixed (μ-EO-N3)2(COO) triple bridges transmits the ferromagnetic interaction between Co(II) ions, while the antiferromagnetic interaction between Cu(II) ions was induced by the mixed (µ-OH)(µ-N, N-tetrazolate) double bridges.

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“…The rapid progress of organic-inorganic hybrid materials have received significant attention for their structural diversity [1][2][3] and fascinating properties with applications such as magnetism [4], gas storage [5], electrical conductivity [6], luminescent science [3,7] and catalysis [8]. The design of the bridging ligands is proved to be one of the most effective ways to manipulate the versatile structures of in the use a multifunctional Cu coordination polymer based on polyoxometalate as an efficient heterogeneous catalyst for the Knoevenagel condensation of a variety of aldehydes with malononitrile or ethyl cyanoacetate.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Cu(II) organic–inorganic hybrid as a catalyst for Knoevenagel condensation

Farzaneh

Maleki

Ghandi

2015

Reac Kinet Mech Cat

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In this study, organic-inorganic hybrid materials based on polyoxometalate and copper coordination polymer, [Cu I (4,4 0 -bipy)] 3 [PMo 10 VI Mo 2 V O 40 {Cu II (2,2 0 -bipy)}] designated as CuMo-CP(1), were prepared and characterized by various techniques including X-ray powder diffraction (XRD), infrared spectroscopy (FT-IR), and elemental analysis. It was found that the CuMo-CP(1) can be used as an efficient heterogeneous bifunctional acid-base catalyst for Knoevenagel condensation of aromatic aldehydes and cyclohexanone with malononitrile or ethyl cyanoacetate at 60°C in ethanol. Obtaining the corresponding Knoevenagel adduct in moderate to excellent conversion yields within 4 h is promising. The catalyst can be easily recovered from the reaction mixture and reused for three times without significant loss of activity.

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Manganese(II) coordination polymer with simultaneous azide, tetrazolate and carboxylate bridges: Synthesis, structure and magnetism

Cited by 16 publications

References 34 publications

Azide Chemistry – An Inorganic Perspective, Part II^[‡][3+2]‐Cycloaddition Reactions of Metal Azides and Related Systems

Azide Chemistry – An Inorganic Perspective, Part II^[‡][3+2]‐Cycloaddition Reactions of Metal Azides and Related Systems

Synthesis, structure and magnetism of two metal(II) compounds based on two new zwitterionic ligands

Multifunctional Cu(II) organic–inorganic hybrid as a catalyst for Knoevenagel condensation

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Manganese(II) coordination polymer with simultaneous azide, tetrazolate and carboxylate bridges: Synthesis, structure and magnetism

Cited by 16 publications

References 34 publications

Azide Chemistry – An Inorganic Perspective, Part II[‡][3+2]‐Cycloaddition Reactions of Metal Azides and Related Systems

Azide Chemistry – An Inorganic Perspective, Part II[‡][3+2]‐Cycloaddition Reactions of Metal Azides and Related Systems

Synthesis, structure and magnetism of two metal(II) compounds based on two new zwitterionic ligands

Multifunctional Cu(II) organic–inorganic hybrid as a catalyst for Knoevenagel condensation

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Azide Chemistry – An Inorganic Perspective, Part II^[‡][3+2]‐Cycloaddition Reactions of Metal Azides and Related Systems

Azide Chemistry – An Inorganic Perspective, Part II^[‡][3+2]‐Cycloaddition Reactions of Metal Azides and Related Systems