Synthesis of layered nickel phosphonate materials based on a topotactic approach

Hix, Gary B.; Harris, Kenneth David Maclean

doi:10.1039/a705411d

Cited by 52 publications

(53 citation statements)

References 7 publications

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“…Most studies to date have been carried out on phenylphosphonic and alkylphosphonic acids. [23][24][25] Phosphonic acids with other organic functional groups such as azacrown ethers, [26][27][28] amines, [29][30][31] sulfonate/sulfonic acid [32,33] and carboxylate/carboxylic acid groups [34][35][36][37] have been found to be better ligands that can form many complexes with novel structures and properties. Motivated by the current work on functional coordinate materials bearing ferrocene (Fc) groups, we have synthesized a ferrocenylphosphonic acid, and subsequently used it for coordination with metal salts, thus yielding materials displaying both ferrocene and metal-phosphonate properties in conjunction with robust inorganic backbones.…”

Section: H T U N G T R E N N U N G (Fmpa) 4 a C H T U N G T R E N Nmentioning

confidence: 99%

Studies on Cage‐Type Tetranuclear Metal Clusters with Ferrocenylphosphonate Ligands

Zhang

et al. 2006

Chemistry A European J

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Reaction of FcCH(2)PO(3)H(2) [Fc=(eta(5)-C(5)H(5))Fe(eta(5)-C(5)H(4))] (H(2)FMPA) and 1,10-phenanthroline (phen) with Cd(OAc)(2).2 H(2)O or ZnSO(4).7 H(2)O in methanol in the presence of triethylamine resulted in the formation of two new ferrocenylphosphonate metal-cage complexes [M(4)(fmpa)(4)(phen)(4)] 7 CH(3)OH (M=Cd 1, M=Zn 2). Both structures contain two kinds of isomeric tetranuclear metal phosphonate cages, which are linked to one another by pi-pi interactions between the phen molecules. In 1, the Cd1, Cd3, and Cd4 atoms are all pentacoordinate, while the Cd2 atom is coordinated by four oxygen atoms from three phosphonate ligands and two nitrogen atoms from the chelating phen in a distorted octahedral geometry. Four Cd atoms from each unit are interconnected through bridging phosphonate ligands with different coordination modes, such as 5.221, 4.211, and 2.11 (Harris notation), yielding a {Cd(4)} cage. In 2, each Zn atom is coordinated by three oxygen atoms from three phosphonate ligands and two nitrogen atoms from phen, leading to a distorted square-pyramidal geometry. The four Zn atoms of each isomeric unit are also interconnected through four bridging phosphonate ligands to yield a {Zn(4)} cage. Fluorescent studies indicate that ligand-to-ligand charge-transfer photoluminescence is observed for 1, while the emission bands of 2 can be assigned to an admixture of ligand-to-ligand and metal-to-ligand charge transfer. Solution-state differential pulse voltammetry indicates that the half-wave potentials of the ferrocenyl moieties in 1 and 2 have different deviations relative to the relevant H(2)FMPA ligand. This may be because the highest occupied molecular orbital (HOMO) in 1 is located in the FMPA(2-) groups, while in 2 the HOMO is located in the phen and Zn(II) groups, so the Fe(II) centers in complex 1 are more easily oxidized to Fe(III) centers than those of 2. The third-order nonlinear optical (NLO) measurements show that both 1 and 2 exhibit strong third-order NLO self-focusing effects; hence, they are promising candidates for NLO materials. By calculating the component of the lowest unoccupied molecular orbitals of 1 and 2, we confirmed that the co-planar phen rings control their optical nonlinearity, while the H(2)FMPA ligands and metal ions have only a weak influence on their NLO properties.

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Section: H T U N G T R E N N U N G (Fmpa) 4 a C H T U N G T R E N Nmentioning

confidence: 99%

Studies on Cage‐Type Tetranuclear Metal Clusters with Ferrocenylphosphonate Ligands

Zhang

et al. 2006

Chemistry A European J

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“…From the set of thermal effects related to direct titration and dilution obtained, recorded as J AE g À1 , the enthalpy of reaction ( P Dh r ) and the enthalpy of intercalation ( P Dh r ) can be calculated as J AE mol À1 by using the previous data adjusted to the modified Langmuir equation [33]. In such a case, a sequence of values was obtained from the calorimetric data to enable the calculation of the enthalpy of intercalation to form the monolayer per unit of mass of the host, Dh int , by using equation (4). The modified Langmuir equation was adapted to describe several types of systems [17] …”

Section: Resultsmentioning

confidence: 99%

“…The earliest studies were focused on tetravalent metals [1,2], however, with progress in the field, a variety of metals were synthesized as layered phosphonates [3][4][5] and their intercalation behavior explored. Significant advances in the intercalation field were derived from changes in properties of the lamellar compounds, such as those related to the host, as well as to the inserted guest molecules, at the end of the process [6,7].…”

Section: Introductionmentioning

confidence: 99%

Calorimetric data on intercalation of some aromatic amines into barium phenylphosphonate at the solid/liquid interface

Lazarin

Airoldi

2005

The Journal of Chemical Thermodynamics

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“…For related literature, see: Alberti et al (1992); Clearfield (1988Clearfield ( , 1998; Hix & Harris (1998); Modi et al (2005); Nonglaton et al (2004); Riou et al (2000); Sharma & Clearfield (2000); Song et al (1999).…”

Section: Related Literaturementioning

confidence: 99%

catena-Poly[[diaquanickel(II)]-μ-2-hydroxyphosphonatoacetato]

Dong

Huang

et al. 2007

Acta Cryst E

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Key indicators: single-crystal X-ray study; T = 295 K; mean (C-C) = 0.004 Å; R factor = 0.025; wR factor = 0.068; data-to-parameter ratio = 11.6. The title compound, [Ni{HO 3 PCH(OH)CO 2 }(H 2 O) 2 ] n , was prepared by a hydrothermal reaction. The octahedral coordination geometry of Ni II is made up of one phosphonate O atom, one hydroxyl O atom, two carboxylate O atoms and two water molecules. This architecture is further stabilized by a number of O-HÁ Á ÁO hydrogen bonds involving the protonated hydroxyl groups, carboxylate O atoms, a phosphonate O atom and coordinated water molecules. Related literature For related literature, see: Alberti et al. Experimental Crystal data [Ni(C 2 H 3 O 6 P)(H 2 O) 2 ] M r = 248.76 Orthorhombic, Pbca a = 8.6776 (9) Å b = 9.7953 (10) Å c = 16.7592 (16) Å V = 1424.5 (2) Å 3 Z = 8 Mo K radiation = 2.96 mm À1 T = 295 (2) K 0.20 Â 0.09 Â 0.07 mm Data collection Bruker APEXII CCD diffractometer Absorption correction: multi-scan (SADABS; Sheldrick, 2003) T min = 0.589, T max = 0.820 7058 measured reflections 1398 independent reflections 1204 reflections with I > 2(I) R int = 0.030

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Synthesis of layered nickel phosphonate materials based on a topotactic approach

Cited by 52 publications

References 7 publications

Studies on Cage‐Type Tetranuclear Metal Clusters with Ferrocenylphosphonate Ligands

Studies on Cage‐Type Tetranuclear Metal Clusters with Ferrocenylphosphonate Ligands

Calorimetric data on intercalation of some aromatic amines into barium phenylphosphonate at the solid/liquid interface

catena-Poly[[diaquanickel(II)]-μ-2-hydroxyphosphonatoacetato]

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