Self-Encapsulation of [MII(phen)2(H2O)2]2+ (M = Co, Zn) in One-Dimensional Nanochannels of [MII(H2O)6(BTC)2]4− (M = Co, Cu, Mn): A High HQ/CAT Ratio Catalyst for Hydroxylation of Phenols

Bi, Jianhong; Kong, Lingtao; Huang, Zirui; Liu, Jinhuai

doi:10.1021/ic7022049

Cited by 36 publications

(13 citation statements)

References 28 publications

(29 reference statements)

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“…The experimental conditions were modulated to arrest the polymerization process at early stages to generate nano and microscale MCPs particles [8,34]. The MCPs' size increased from nanorods to microrods and ultimately became macrorods (shown in Figure 4a, b, c) with the increase in crystallization time.…”

Section: Resultsmentioning

confidence: 99%

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Self-assembly of copper and cobalt complexes with hierarchical size and catalytic properties for hydroxylation of phenol

Dong

Tao

et al. 2011

Nanoscale Res Lett

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A feasible and effective self-assembly method to synthesize different scale coordination polymers in highly dilute solution (from nanocrystals to microcrystals and to bulk crystals) without any blocking agent has been described. The growth of crystalline particles was controlled by removing the particles at different reaction times to interrupt the growth at the desired size. The nano and microscale particles show better catalytic conversions and selectivities in the hydroxylation of phenols than the bulk crystals.

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Section: Resultsmentioning

confidence: 99%

“…Transition metal-based complexes and oxides are well-known catalysts in this reaction [28-34]. Herein, we present the size controllable synthesis of two series of hierarchical MCPs using a simple method under mild conditions.…”

Section: Introductionmentioning

confidence: 99%

Self-assembly of copper and cobalt complexes with hierarchical size and catalytic properties for hydroxylation of phenol

Dong

Tao

et al. 2011

Nanoscale Res Lett

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“…Metal-containing hydrogen-bonded networks have the advantage of tenability owing to the intrinsic flexibility of hydrogen bonds, and give access to physical properties that are less common in organic solids [1][2][3][4]. Nevertheless, how to control hydrogenbonding interactions toward formation of ordered solid remains to be ac hallenging subject.…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of bis(diaqua-bis(1,10-phenanthroline)zinc(II)) hexaaquazinc(II) bis(1,3,5-benzenetricarboxylate) hydrate, [Zn(H2O)2(C12H8N2)2]2[Zn(H2O)6](C9H3O6)2 · 19.5H2O

Lian¹,

Zhao²,

Zhang³

et al. 2009

Zeitschrift Für Kristallographie - New Crystal Structures

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C 66 H 97 N 8 O 41.50 Zn 3 ,monoclinic, P12 1 /c1(no. 14), a =12.762(2) Å, b =18.957(2) Å, c =18.057(2) Å, b =90.05°, V =4368.7 Å 3 , Z =2,Rgt(F) =0.064, wR ref (F 2 ) =0.223, T =298 K. Source of materialAmixture of benzene-1,3,5-tricarboxylic acid (BTC, 0.022 g, 0.1 mmol), Zn(CH 3COO)2 (0.018 g, 0.1 mmol), 2,2'-bipy (0.016 g, 0.1 mmol), NaOH (0.2 M, 1.5 mL) and H 2O( 10 mL) was stirred for about 30 min. The resulting solution was sealed in aTeflonlined stainless autoclave and heated to 393 Kfor 3days. The bottle was cooled to ambient temperature spontaneously. Colourless single crystals (about 71% yield, based on Zn input) were separated by vacuum filtration and drying in air. Elemental analysis -found: C, 42.76 %; H, 5.16 %; N, 6.13 %; calulated for C 66H97N8O41.50Zn3:C ,42.55 %; H, 5.22 %; N, 6.01 %. Experimental detailsThe C-bound Ha toms were geometrically placed (d(C-H) = 0.93 Å)and refined as riding with U iso(H) =1.2 Ueq(C). The Obound Ha toms were located in difference maps and refined as riding in their as-found relative positions with U iso (H) =1 .2 U eq (O). The high residual-values are caused by the quality of the crystal. The lattice water molecules (O20, O21, O22, O23 and O24) are disordered. The water Hatoms were not located. DiscussionMetal-containing hydrogen-bonded networks have the advantage of tenability owing to the intrinsic flexibility of hydrogen bonds, and give access to physical properties that are less common in organic solids [1][2][3][4]. Nevertheless, how to control hydrogenbonding interactions toward formation of ordered solid remains to be ac hallenging subject. 1,3,5-Benzenetricarboxylic acid (BTC) is agood ligand for the construction of supramolecular architectures [5][6][7][8][9][10][11][12], because the multicarboxylate groups of the molecule may be completely or partially deprotonated, and these anions may act as bridging ligands in various coordination modes.The title compound has adiscrete crystal structure based on Zn ions, phen ligands and BTC ligands. The asymmetrical unit contains two Zn atoms. The Zn1 center has distorted octahedral coordination with four nitrogen atoms from two cis-positioned phen ligands and two water molecules. The Zn2 is located on acrystallographic inversion center, and coordinates to six terminal coordinated water molecules. The Zn-Od istances range from 2.008(3) to 2.147(3) Å,and the Zn-Ndistances are in the range 2.123(4) -2 .186(4) Å.T he bond angles around the zinc center range from 77.22 (2) 2+ are contained in the 2D hydrogen bonded host framework, and encapsulated in the 1D channels along [100] being hydrogen-bonded to the carboxylate oxygen atoms of BTC and forming a3Dextended framework.

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“…In this field, the choice of suitable organic ligands favoring structure-specific self-assembly is crucial for the construction of coordination structures with relevant properties and functions [4]. In this context, carboxylic acid ligands, especially benzene-and naphthalene-based carboxylic acids such as 1,2-benzenedicarboxylic acid [5], 1,3-benzenedicarboxylic acid [6], 1,4-benzenedicarboxylic acid [6][7][8], 1,3,5-benzenetricarboxylic acid [6,8,9], 1,2,4,5-benzenetetracarboxylic acid [10], and naphthalene-1,4-dicarboxylic acid [11], have been well used in the preparation of various M II -carboxylate complexes owing to their rich coordination modes. In contrast, the use of monocarboxylic acid ligands with bulky backbones to construct functional M II -carboxylate compounds has been less investigated to date.…”

Section: Introductionmentioning

confidence: 99%

Four complexes with a bulky carboxylate ligand: syntheses, crystal structures, and luminescent properties

Wang

Zhu

Wang

2011

Transition Met Chem

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Four complexes of 3,3-diphenylpropanoate (L) and 4,4 0 -bipyridine as auxiliary bridging ligands were synthesized and characterized, namely [Zn(L) 2 (4bpy)-(EtOH) 2 ] ? (1), [Co(L) 2 (4bpy)(EtOH) 2 ] ? (2), [Ni(L) 2 (4bpy)-(EtOH) 2 ] ? (3), and [Cu(L) 2 (4bpy)(H 2 O)] ? (4) (4bpy = 4,4 0 -bipyridine). X-ray single-crystal diffraction analyses show that complexes 1-4 all take one-dimensional (1D) fishbone-like structures incorporating bridging 4bpy ligands. The complexes show different supramolecular frameworks interlinked via intermolecular hydrogen bonds, pÁÁÁp stacking, and/or C-HÁÁÁp supramolecular interactions. Complex 3 only has a simple one-dimensional fishbonelike chain, whereas complexes 1 and 2 show two-dimensional supramolecular structures by interchain C-HÁÁÁO hydrogen bonds. Complex 4 is assembled into twodimensional layers and then an overall three-dimensional framework by a combination of interchain O-HÁÁÁO hydrogen bonds and C-HÁÁÁp supramolecular interactions. The luminescent properties of the ligands and their complexes were investigated.

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Self-Encapsulation of [M^II(phen)₂(H₂O)₂]²⁺ (M = Co, Zn) in One-Dimensional Nanochannels of [M^II(H₂O)₆(BTC)₂]⁴⁻ (M = Co, Cu, Mn): A High HQ/CAT Ratio Catalyst for Hydroxylation of Phenols

Cited by 36 publications

References 28 publications

Self-assembly of copper and cobalt complexes with hierarchical size and catalytic properties for hydroxylation of phenol

Self-assembly of copper and cobalt complexes with hierarchical size and catalytic properties for hydroxylation of phenol

Crystal structure of bis(diaqua-bis(1,10-phenanthroline)zinc(II)) hexaaquazinc(II) bis(1,3,5-benzenetricarboxylate) hydrate, [Zn(H2O)2(C12H8N2)2]2[Zn(H2O)6](C9H3O6)2 · 19.5H2O

Four complexes with a bulky carboxylate ligand: syntheses, crystal structures, and luminescent properties

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