Iron, copper and zinc ammonium-1-hydroxyalkylidene-diphosphonates with zero-, one- and two-dimensional covalent metal–ligand structures extended into three-dimensional supramolecular networks by charge-assisted hydrogen-bonding

Habib, Hesham A.; Gil‐Hernández, Beatriz; Abu‐Shandi, Khalid; Sanchiz, Joaquı́n; Janiak, Christoph

doi:10.1016/j.poly.2010.05.025

Cited by 48 publications

(20 citation statements)

References 87 publications

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“…Finally, we note that in both structures, 1 and 2, the H-bonds to the phosphonato groups are so-called charge-assisted hydrogen bonds. The hydrogen bond donor and/or acceptor carry positive and negative ionic charges, respectively, hence are usually stronger and shorter than neutral H-bonds [12,46,47,[50][51][52][53][54]. In 1 these are bonds NH 4 (+)¨¨¨p´q O-P and NH 4 (+)¨¨¨( H)O-P, -P-OH¨¨¨p´qO-P (Figure 1c).…”

Section: Resultsmentioning

confidence: 99%

“…The use of metal phosphonates in catalysis, luminescence [6], ion or proton exchange or conductivity [7,8] and in separation is discussed and investigated [9]. Further, cobalt and iron organophosphonates are investigated for their magnetic properties [10][11][12][13]. Metal phosphonates are also promising porous materials [14,15], and can be reversibly hydrated and dehydrated [16].…”

Section: Introductionmentioning

confidence: 99%

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Charge-Assisted Hydrogen-Bonded Networks of NH4+ and [Co(NH3)6]3+ with the New Linker Anion of 4-Phosphono-Biphenyl-4′-Carboxylic Acid

Heering¹,

Nateghi²,

Janiak³

2016

Crystals

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Abstract:The new linker molecule 4-phosphono-biphenyl-4 1 -carboxylic acid (H 2 O 3 P-(C 6 H 4 ) 2 -COOH, H 3 BPPA) has been structurally elucidated in hydrogen-bonded networks with the ammonium cation NH 4 (H 2 BPPA)(H 3 BPPA) (1) and the hexaamminecobalt(III) cation [Co(NH 3 ) 6 ](BPPA)¨4H 2 O (2). The protic O-H and N-H hydrogen atoms were found and refined in the low-temperature single-crystal X-ray structures. The hydrogen bonds in both structures are so-called charge-assisted; that is, the H-bond donor and/or acceptor carry positive and/or negative ionic charges, respectively.The H-bonded network in 1 consists of one formally mono-deprotonated 4-phosphonato-biphenyl-4 1 -carboxylic acid group; that is, a H 2 BPPA´anion and a neutral H 3 BPPA molecule, which together form a 3D hydrogen-bonded network. However, an almost symmetric resonance-assisted hydrogen bond (RAHB) bond [O¨¨¨H = 1.17 (3) and 1.26 (3) Å, O¨¨¨H¨¨¨O = 180 (3)˝] signals charge delocalization between the formal H 2 BPPA´anion and the formally neutral H 3 BPPA molecule. Hence, the anion in 1 is better formulated as [H 2 BPPA¨¨¨H¨¨¨H 2 BPPA]´. In the H-bonded network of 2 the 4-phosphonato-biphenyl-4 1 -carboxylic acid is triply deprotonated, BPPA 3´. The [Co(NH 3 ) 6 ] 3+ cation is embedded between H-bond acceptor groups, -COO´and -PO 3´a nd H 2 O molecules. The incorporation of sixteen H 2 O molecules per unit cell makes 2 an analogue of the well-studied guanidinium sulfonate frameworks.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Charge-Assisted Hydrogen-Bonded Networks of NH4+ and [Co(NH3)6]3+ with the New Linker Anion of 4-Phosphono-Biphenyl-4′-Carboxylic Acid

Heering¹,

Nateghi²,

Janiak³

2016

Crystals

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“…Lanthanide phosphonates with structural diversity and related physical and chemical properties could be obtained by modifying phosphonates with different functional organic groups, such as crown ether [14][15][16][17][18], carboxylate [19][20][21][22][23], pyridyl, amino and hydroxyl [24][25][26][27][28][29][30][31][32], etc. Much of recent work has so far focused on the exploration of metal phosphonate materials with new structural types, and a large number of metal phosphonates were prepared through designing and synthesizing phosphonic synthesizing phosphonic acids with different functional organic groups [7,[33][34][35][36][37]. More recently, a series of metal phosphonates, using phosphonic acids containing -NH2 sub functional group were also isolated under solvothermal condition [38,39].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structures, and Magnetic Properties of Lanthanide (III) Amino-Phosphonate Complexes

Zangana

2018

Magnetochemistry

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Both compounds have been characterized with elemental analysis, single-crystal X-ray diffraction methods, and magnetic measurements. The molecular structure of compounds 1 and 2 reveal two highly unsymmetrical complexes comprising ten lanthanide metal centers, where the lanthanide metal ion centers in the cages are linked through pivalate units and further interconnected by CPO 3 tetrahedra to build the crystal structure. The magnetic behavior of 1 and 2 was investigated between ambient temperature and ca. 2 K, the magnetic measurements for compound 1 suggests antiferromagnetic interactions between the Gd(III) metal ion centers at low temperatures. The large number of isotropic Gd(III) ions comprising 1 makes it a candidate for magnetocaloric applications, thus the magnetocaloric properties of this molecular cage were investigated indirectly through isothermal magnetisation curves. The magnetic entropy change was found to be 34.5 J kg −1 K −1 , making 1 a plausible candidate in magnetic cooling applications.

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“…This subject is a major challenge in current coordination chemistry [1][2][3][4][5]. Most of these compounds contain two different transition metal ions.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular assembly of new heteropolymetalic molecules based on tetraiminodiphenolate macrocycle and hexacyanometallate anions: Magnetostructural and spectroscopic properties

et al. 2011

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Iron, copper and zinc ammonium-1-hydroxyalkylidene-diphosphonates with zero-, one- and two-dimensional covalent metal–ligand structures extended into three-dimensional supramolecular networks by charge-assisted hydrogen-bonding

Cited by 48 publications

References 87 publications

Charge-Assisted Hydrogen-Bonded Networks of NH4+ and [Co(NH3)6]3+ with the New Linker Anion of 4-Phosphono-Biphenyl-4′-Carboxylic Acid

Charge-Assisted Hydrogen-Bonded Networks of NH4+ and [Co(NH3)6]3+ with the New Linker Anion of 4-Phosphono-Biphenyl-4′-Carboxylic Acid

Synthesis, Crystal Structures, and Magnetic Properties of Lanthanide (III) Amino-Phosphonate Complexes

Supramolecular assembly of new heteropolymetalic molecules based on tetraiminodiphenolate macrocycle and hexacyanometallate anions: Magnetostructural and spectroscopic properties

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