Polycatenation, polythreading and polyknotting in coordination network chemistry

Carlucci, Lucia; Ciani, Gíanfranco; Proserpio, Davide M.

doi:10.1016/s0010-8545(03)00126-7

Cited by 1,895 publications

(677 citation statements)

References 219 publications

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“…Y2(III) ion is coordinated by four oxygen atoms from three tzda 2-anions and four coordinated water molecules in adistorted square-antiprismatic manner (figure, top). The bond lengths of Y-Orange from 2.279(2) to 2.483(2) Å,comparable with those in the polymer {Y 2 (tzda) 3 (H 2 O) 10 ] · 5H 2 O} n [14]. Noticeably, three tzda 2-anions present three kinds of coordination modes linking the Y(III) ions: (a) one carboxylate group adopts a monodentate mode, and the other one adopts abidentate chelating mode (m 2 (7) 2i 0.84503 …”

supporting

confidence: 56%

Crystal structure of pentaaqua-tris[(1,3,4-thiadiazole-2,5- diyldithio)diacetato]diyttrium(III), Y2(H2O)5(C6H12NO4S3)3

Wang¹,

Li²,

Wang³

2009

Zeitschrift Für Kristallographie - New Crystal Structures

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supporting

confidence: 56%

Crystal structure of pentaaqua-tris[(1,3,4-thiadiazole-2,5- diyldithio)diacetato]diyttrium(III), Y2(H2O)5(C6H12NO4S3)3

Wang¹,

Li²,

Wang³

2009

Zeitschrift Für Kristallographie - New Crystal Structures

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“…In past decades, the design and synthesis of metal-organic frameworks has been a field of rapid growth in supramolecular and material chemistry due to their fascinating topologies and useful properties [1][2][3][4][5]. An effective approach in building such materials is to employ suitable organic bridging ligands [6,7].…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of pentaaqua-tris[(1,3,4-thiadiazole-2,5- diyldithio)diacetato]diyttrium(III), Y2(H2O)5(C6H12N04S3)3

Wang¹,

Li²,

Wang³

2009

Zeitschrift Für Kristallographie - New Crystal Structures

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Source of materialThe title compound was prepared by hydrothermal method. A mixture of (l,3,4-thiadiazole-2,5-diyldithio)diacetic acid (H 2 tzda, 0.6 mmol), NaOH (1.2 mmol), Υ(Ν0 3 )3·6Η 2 0 (0.4 mmol), and water (15 mL) was sealed in a 25 mL Teflon-lined stainless steel vessel and then heated at 120 °C for 96 h. After being cooled slowly to room temperature, the title complex as colorless needle-like crystals was collected by filtration, washed with water, and dried in air. DiscussionIn past decades, the design and synthesis of metal-organic frameworks has been a field of rapid growth in supramolecular and material chemistry due to their fascinating topologies and useful properties [1][2][3][4][5]. An effective approach in building such materials is to employ suitable organic bridging ligands [6,7]. Carboxylatecontaining ligands have attract considerable interest in reported multidentate ligands because of their diverse coordination modes [8][9][10][11][12]. Furthermore, it is found flexible ligands may induce novel topologies owing to their flexibility and conformation freedoms [13]. The title crystal structure exhibits an infinite three-dimensional network. In each independent crystallographic unit, there are two Υ(ΙΠ) ions, three tzda ~ anions and five aqua ligands (figure, top). Y1 (ΠΙ) ion is surrounded by nine oxygen atoms, eight of them are from carboxylate groups of six tzda ~ anions, while the last oxygen atom is from a water molecule. The local environment of the

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“…In recent years, the synthesis and characterization of metalorganic frameworks has become an active area in the field of supramolecular and material chemistry due to their fascinating network topologies and potential applications in the areas of magnetic, optical, electronic and catalytic properties [1][2][3][4][5][6]. It is found that the selection of appropriate organic bridging ligands provides apossible route to achieve more intriguing polymeric structures [7][8][9].…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of bis(imidazole-1-acetato)cobalt(II), Co(C5H5N2O2)2

Wang¹,

Xin²,

Wang³

2009

Zeitschrift Für Kristallographie - New Crystal Structures

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C 10 H 10 CoN 4 O 4 ,monoclinic, P2 1 /n (no. 14), a =8.305(3) Å, b =5.035(2) Å, c =12.328(4) Å, b =91.285(4)°, V =515.4 Å 3 , Z =2,R gt(F) =0.022, wRref(F 2 ) =0.061, T =291 K. Source of materialImidazole-1-acetic acid (Hidza) was of reagent grade purity and used as received from commercial source without further purification. The title compound was prepared through the hydrothermal conditions. Amixture of Hidza (1 mmol), NaOH (1 mmol), CoCl 2. · . 6H 2 O( 0.5 mmol), and water (12ml) was sealed in a 25 . mL Teflon-lined reactor and heated in an oven at 130°Cfor 72 h. h. Then the autoclave was slowly cooled to room temperature. The title complex as pink block-shaped crystal was collected by filtration, washed with water, and dried in air. DiscussionIn recent years, the synthesis and characterization of metalorganic frameworks has become an active area in the field of supramolecular and material chemistry due to their fascinating network topologies and potential applications in the areas of magnetic, optical, electronic and catalytic properties [1][2][3][4][5][6]. It is found that the selection of appropriate organic bridging ligands provides apossible route to achieve more intriguing polymeric structures [7][8][9]. Over the past decades, great efforts have been focused on rigid multidentate ligands containing N-or O-donors, such as 4,4'-bipyridine [10], imidazole [11], 1,4-benzenedicarboxylic acid [12], since when rigid multifunctional ligands are used as spacers to connect metal centers, the topology of the network is usually determined by the coordination geometry of the central metal [13]. In contrast, the investigation on flexible ligands in construction of metal-organic frameworks is comparatively rare, though the flexible ones may induce novel topologies and unique properties owing to their flexibility and conformation freedoms. Herein, we select imidazole-1-acetic acid (Hidza) containing spaces of idza anions. Along the diagonal direction of (010), such 2D layers are stacked with an ABAB sequence. Two imidazolyl ring between adjacent layers are also parallel with centroid-to-centroid distance of 3.7738(9) Å,indicating the existence of p-p stacking interactions. Then these p-p stacking interactions extend 2D layered network into afinal 3D supramolecular framework.

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Polycatenation, polythreading and polyknotting in coordination network chemistry

Cited by 1,895 publications

References 219 publications

Crystal structure of pentaaqua-tris[(1,3,4-thiadiazole-2,5- diyldithio)diacetato]diyttrium(III), Y2(H2O)5(C6H12NO4S3)3

Crystal structure of pentaaqua-tris[(1,3,4-thiadiazole-2,5- diyldithio)diacetato]diyttrium(III), Y2(H2O)5(C6H12NO4S3)3

Crystal structure of pentaaqua-tris[(1,3,4-thiadiazole-2,5- diyldithio)diacetato]diyttrium(III), Y2(H2O)5(C6H12N04S3)3

Crystal structure of bis(imidazole-1-acetato)cobalt(II), Co(C5H5N2O2)2

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