Polymer‐Induced Heteronucleation for the Discovery of New Extended Solids

Grzesiak, Adam L.; Uribe, Fernando J.; Ockwig, Nathan W.; Yaghi, Omar M.; Matzger, Adam J.

doi:10.1002/anie.200504312

Cited by 142 publications

(85 citation statements)

References 14 publications

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“…The closest relatives appear to be Zn 3 (µ 3 -O)(µ-CF 3 COO) x clusters with x = 5 [15] or 6, [16] and with similar frameworks and geometries. The anion in compound 3 contains one four-coordinate (Zn2) and two six-coordinate (Zn1, Zn3) zinc ions joined together by a triply bridging ligand O4.…”

Section: Two Trifluoroacetate Structures -Compounds 3 Andmentioning

confidence: 95%

Aqueous Reduction of [Cp₂W₂O₅]: Characterization of the Triangular Clusters [Cp₃W₃O₄(OH)₂]²⁺ and [Cp*₃W₃O₆]⁺ – Comparison with Molybdenum

et al. 2007

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Zinc reduction of Cp*2W2O5 in an acidified water–methanol medium affords the green 3‐electron trinuclear cluster [Cp*3W3O4(OH)2]2+, isolated and crystallographically characterized as the triflate salt, 1. Upon exposure to air, this complex is oxidized to a related 2‐electron cluster, [Cp*3W3O6]+, which was crystallized and characterized in three different salts, 2–4. The 3‐electron cluster exhibits a near‐tetragonal frozen‐glass EPR spectrum, and it shows evidence of coupling of the unpaired electron to only one of the three W atoms. The two‐electron cluster is diamagnetic. An electrospray ionization MSn study revealed a stepwise expulsion of neutral [Cp*WO2] units as the main fragmentation process. DFT calculations unveiled the intimate details of the electronic structures of these complexes and fully rationalized the structural and spectroscopic properties.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)

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Section: Two Trifluoroacetate Structures -Compounds 3 Andmentioning

confidence: 95%

Aqueous Reduction of [Cp₂W₂O₅]: Characterization of the Triangular Clusters [Cp₃W₃O₄(OH)₂]²⁺ and [Cp*₃W₃O₆]⁺ – Comparison with Molybdenum

et al. 2007

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“…The design and synthesis of metal-organic frameworks constructed from transition metal ions and 1,4-benzenedicarboxylic acid (1, ligand have attracted intensive attention in recent years because of their intriguing structural topologies and tailor-made applications as functional solid materials [1][2][3]. Recent studies have shown the remarkable analogy of 1,4-BDC-type ligands with bulky methyl [4], fluorine [5], chlorine [6] or bromine [7] groups, since they not only provide astonishing thermal and chemical stability and stereo-chemical characteristics, but also prevent interpenetration phenomena of resultant polymeric networks.…”

Section: Discussionmentioning

confidence: 99%

“…By placing aCH 3 OH solution (10 ml) of tetrafluoroterephthalic acid (tfbdc, 23.8 mg, 0.1 mmol) at the bottom of astraight glass tube and then carefully added abuffer of glycol (10 ml), above which aC H 3 OH solution (10 ml) containing ZnCl 2 (13.6 mg, 0.1 . mmol) was placed in this tube.…”

Section: Source Of Materialsmentioning

confidence: 99%

Crystal structure of catena-poly[bis(glycol-1 k²O,O')-(μ₂- tetrafluoroterephthalato)zinc(II)], Zn(C₈F₄O₄)(C₂H₆O₂)₂

He¹,

Xu²,

Lu³

et al. 2009

Zeitschrift Für Kristallographie - New Crystal Structures

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Source of materialBy placing aCH 3 OH solution (10 ml) of tetrafluoroterephthalic acid (tfbdc, 23.8 mg, 0.1 mmol) at the bottom of astraight glass tube and then carefully added abuffer of glycol (10 ml), above which aC H 3 OH solution (10 ml) containing ZnCl 2 (13.6 mg, 0.1 . mmol) was placed in this tube. The resulting slow diffusion of solvents across the boundary layer results in excellent colorless block-shaped crystals growing there over aperiod of two weeks. Experimental detailsHatoms bound to methylene carbon atoms were assigned to calculated positions with d(C-H) =0.97 Å and refined using ariding model, with U iso (H) =1 .2 U eq (C). Hydroxyl Ha toms were positioned geometrically with d(O-H) =0.84 Å and U iso (H) = 1.5 U eq(O). DiscussionThe design and synthesis of metal-organic frameworks constructed from transition metal ions and 1, In the asymmetric unit, one Zn II ion lying on an inversion center [at (0 0 ½)] is coordinated by six oxygen atoms in anearly ideal octahedral configuration. The Zn II ion is chelated by four Oatoms from two glycol molecules in the equatorial plane and two axial O atoms from two centrosymmetric tetrafluoroterephthalate (tfbdc) ligands. Because of the steric hindrance of the fluorine atoms located at the ortho positions of carboxylate, the rotation angle of tetrafluorined phenyl ring relative to carboxylate is 47.3(2)°, which is quite similar to that of arecent reported Mn-tfbdc polymer [8]. Each tfbdc anion bridges two Zn II centers in ab ismonodentate fashion to afford alinear chain along the [1 1 1]with adjacent Zn···Zn separation of 11.503(1) Å.Within the polymeric chain, one hydroxyl of the glycol molecule is involved in the strong intramolecular O4-H4···O2 i bond (i = -x,-y+2,-z+1)t o the uncoordinated O2 atom of tfbdc moiety. Moreover, intermolecular O3-H3···O1ii bonds (ii = x-1,y,z)connect adjoining chains into atwo-dimensional network.

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“…[11][12][13][14][15] However, the use of 2-bromo-1,4-benzenedicarboxylate, a derivative of 1,4-benzenedicarboxylic acid, for the constrction of metal-organic frameworks has not been well-documented yet. [16][17][18][19] Crystallographic data collection and structures determination Single crystal X-ray diffraction analyses of the two complexes were carried out. A yellow or red single crystal of the complex 1 or 2 was put on a Bruker SMART APEX II CCD diffractometer equipped with a graphite monochromated MoΚα radiation (λ = 0.71073 Å) by using ω−2θ scan technique at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Syntheses and crystal structures of two new coordination polymers constructed from 2‐bromo‐1,4‐benzenedicarboxylate

Wang¹

2008

Cryst. Res. Technol.

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To explore the possibility of obtaining the metal-organic frameworks (MOFs) bearing the 2-bromo-1,4-benzenedicarboxylate ligand, one new Mn(II) and one Co(II) coordination polymers, [Mn(HL) 2 (bipy) 2 ·2H 2 O] ·bipy (1) and [Co(L)(bpe)] (2) (bipy=4,4'-bipyridine; bpe=1,2-bis(4-pyridyl)ethene) were synthesized and characterized by elemental analysis and X-ray diffraction analysis. Compounds 1 exhibits one-dimensional coordination chains, which are further connected to form two dimensional supramolecular networks through hydrogen bonding interactions. Compound 2 presents a two-fold interpenetrating two-dimensional layer structure. The 2-bromo-1,4-benzenedicarboxylate anion exhibits different coordination modes in the two complexes.

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Polymer‐Induced Heteronucleation for the Discovery of New Extended Solids

Cited by 142 publications

References 14 publications

Aqueous Reduction of [Cp₂W₂O₅]: Characterization of the Triangular Clusters [Cp₃W₃O₄(OH)₂]²⁺ and [Cp*₃W₃O₆]⁺ – Comparison with Molybdenum

Aqueous Reduction of [Cp₂W₂O₅]: Characterization of the Triangular Clusters [Cp₃W₃O₄(OH)₂]²⁺ and [Cp*₃W₃O₆]⁺ – Comparison with Molybdenum

Crystal structure of catena-poly[bis(glycol-1 k²O,O')-(μ₂- tetrafluoroterephthalato)zinc(II)], Zn(C₈F₄O₄)(C₂H₆O₂)₂

Syntheses and crystal structures of two new coordination polymers constructed from 2‐bromo‐1,4‐benzenedicarboxylate

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Polymer‐Induced Heteronucleation for the Discovery of New Extended Solids

Cited by 142 publications

References 14 publications

Aqueous Reduction of [Cp*2W2O5]: Characterization of the Triangular Clusters [Cp*3W3O4(OH)2]2+ and [Cp*3W3O6]+ – Comparison with Molybdenum

Aqueous Reduction of [Cp*2W2O5]: Characterization of the Triangular Clusters [Cp*3W3O4(OH)2]2+ and [Cp*3W3O6]+ – Comparison with Molybdenum

Crystal structure of catena-poly[bis(glycol-1 k2O,O')-(μ2- tetrafluoroterephthalato)zinc(II)], Zn(C8F4O4)(C2H6O2)2

Syntheses and crystal structures of two new coordination polymers constructed from 2‐bromo‐1,4‐benzenedicarboxylate

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Aqueous Reduction of [Cp₂W₂O₅]: Characterization of the Triangular Clusters [Cp₃W₃O₄(OH)₂]²⁺ and [Cp*₃W₃O₆]⁺ – Comparison with Molybdenum

Aqueous Reduction of [Cp₂W₂O₅]: Characterization of the Triangular Clusters [Cp₃W₃O₄(OH)₂]²⁺ and [Cp*₃W₃O₆]⁺ – Comparison with Molybdenum

Crystal structure of catena-poly[bis(glycol-1 k²O,O')-(μ₂- tetrafluoroterephthalato)zinc(II)], Zn(C₈F₄O₄)(C₂H₆O₂)₂