From Molecules to Crystal Engineering:  Supramolecular Isomerism and Polymorphism in Network Solids

Moulton, Brian; Zaworotko, Michael J.

doi:10.1021/cr9900432

Cited by 6,275 publications

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References 362 publications

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“…The co-crystallization of two different monomeric compounds in the asymmetric unit, [Cu(NO 3 (2), together with the crystallographic labeling scheme, are shown in Figures 1 and 2, respectively. Selected bond lengths and angles with their estimated standard deviations in parentheses are listed in Table 2 and 3, respectively.…”

Section: X-ray Crystallographic Studiesmentioning

confidence: 99%

“…However, the main interest in IR spectrum of the compounds 1-2 lies in the bands associated with the vibrational modes of N 3 and NO 3 -groups as they can be very useful for the diagnosis of their coordination mode. The first feature of the IR spectrum of the co-crystal was the occurrence of a strong band at 2032 cm -1 assigned to ν ass N 3 and indicative of azide group terminally coordinated to the copper atom.…”

Section: Ir Spectroscopymentioning

confidence: 99%

“…2 Within this context, a large number of well-ordered architectures has been successfully built up by assembling discrete coordination compounds via hydrogen bonding motifs. 3 In our recent works, 4 we have obtained a series of multidimensional supramolecular systems based on the selfassembly of discrete [Pd(SCN) 2 (3,5-dimethylpyrazole) 2 ], and [M(NCS) 2 (pyrazole) 4 ] (M = Co, Ni) by means of intermolecular hydrogen bonds, type N-H···NCS-Pd and N-H···SCN-M, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…2 Within this context, a large number of well-ordered architectures has been successfully built up by assembling discrete coordination compounds via hydrogen bonding motifs. 3 In our recent works, 4 we have obtained a series of multidimensional supramolecular systems based on the selfassembly of discrete [Pd(SCN) , 6.19; N, 30.09; Cu, 19.50%, Found: C, 21.94; H, 6.49; N, 29.89; Cu, 19.45). …”

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confidence: 99%

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3D hydrogen-bonded network built from copper(II) complexes of 1,3-propanediamine

Legendre¹,

Andrade²,

Ananias³

et al. 2006

J. Braz. Chem. Soc.

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A reação entre Cu(NO 3 ) 2 .3H 2 O e 1,3-propanodiamina (pn), na presença de NaN 3 , conduziu à obtenção de um co-cristal 1:1 formado por [Cu(NO 3 ) 2 (pn) 2 ] e [Cu(N 3 )(NO 3 )(pn) 2 ] (1 e 2), os quais foram caracterizados por análise elementar, espectroscopia no IV e difração de raios X por monocristal. Em ambos os compostos, os átomos de cobre(II) encontram-se em um ambiente octaédrico distorcido, com quatro ligações no plano basal formadas por quatro átomos de N de dois ligantes pn bidentados enquanto que as ligações axiais são formadas por dois átomos de O do ligante nitrato em 1 e por um átomo de O do ligante nitrato e um átomo de N do íon azida em 2. A estrutura cristalina consiste em dois complexos (1 e 2) cristalograficamente independentes, que se unem por uma série de ligações de hidrogênio do tipo N-H···O e N-H···N bem como interações por C-H···O. Novos synthons supramoleculares foram identificados pela ocorrência de dois modos geometricamente distintos de reconhecimento molecular envolvendo o íon NO 3 -e grupos amino dos ligantes pn.The reaction of Cu(NO 3 ) 2 .3H 2 O with 1,3-propanediamine (pn), in the presence of NaN 3 , afforded a 1:1 co-crystal formed by [Cu(NO 3 ) 2 (pn) 2 ] and [Cu(N 3 )(NO 3 )(pn) 2 ] (1 and 2), which were characterized by elemental analysis, IR spectroscopy and single crystal X-ray diffraction. In both compounds, the copper(II) centers are in a distorted octahedral environment, formed by four N atoms of two bidentate pn ligands in the basal plane, whereas the axial bonds are formed by two O atoms from the nitrate ligands in 1 and one O atom from the nitrate ligand and one N atom from the azide ion in 2. The asymmetric unit of the crystal consists of two crystallographically independent 1 and 2 complexes, which are held together in a 3D network by a series of N-H···O and N-H···N hydrogen bonds, as well C-H···O interactions. New supramolecular synthons are identified by the occurrence of two geometrically distinct molecular recognition patterns involving the NO 3 -ion and amino groups from pn ligands.Keywords: copper(II) complexes, hydrogen bonds, supramolecular chemistry IntroductionMuch attention has been devoted to the investigation of transition metal-based supramolecular frameworks due to theoretical and challenging aspects in controlling the selfassembly processes, as well the potential uses of such materials in sensing, gas adsorption, magnetic devices, molecular electronics, porous and nanosized materials. 1 Among the non-covalent interactions, which play a significant role in the molecular self-recognition of the components, within the crystal, the hydrogen bonding is the most important interaction type, since it combines directionality with strength. 2 Within this context, a large number of well-ordered architectures has been successfully built up by assembling discrete coordination compounds via hydrogen bonding motifs. 3 In our recent works, 4 we have obtained a series of multidimensional supramolecular systems based on the selfassembly of discrete [Pd(SCN) ,...

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Section: X-ray Crystallographic Studiesmentioning

confidence: 99%

Section: Ir Spectroscopymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…2 Within this context, a large number of well-ordered architectures has been successfully built up by assembling discrete coordination compounds via hydrogen bonding motifs. 3 In our recent works, 4 we have obtained a series of multidimensional supramolecular systems based on the selfassembly of discrete [Pd(SCN) , 6.19; N, 30.09; Cu, 19.50%, Found: C, 21.94; H, 6.49; N, 29.89; Cu, 19.45). …”

mentioning

confidence: 99%

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3D hydrogen-bonded network built from copper(II) complexes of 1,3-propanediamine

Legendre¹,

Andrade²,

Ananias³

et al. 2006

J. Braz. Chem. Soc.

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“…1 However, supramolecular systems have to be organized at the solid state and/or solid/liquid interfaces before they find applications as functional materials with spatially defined properties. [2][3][4][5][6] In the stepwise building of such materials, both reversible molecular assemblies to form supramolecules controlled by noncovalent interactions, ranging from weak van der Waals forces to more intense hydrogen bonds, 7 and nonreversible arrangements in the solid state to produce crystals with long-range order 3 are subjects of intensive research.…”

Section: Introductionmentioning

confidence: 99%

Solid Crystal Network of Self-Assembled Cyclodextrin and Nonionic Surfactant Pseudorotaxanes

et al. 2010

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Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=d3c8753c-ea81-4754-a0f9-e57589bd000a http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=d3c8753c-ea81-4754-a0f9-e57589bd000a Sciences, National Research Council Canada, Ottawa, Canada ReceiVed: June 23, 2010; ReVised Manuscript ReceiVed: July 23, 2010 The title system allows the straightforward formation of three-dimensional crystals of self-assembled pseudorotaxanes formed by the nonionic surfactant Igepal CO-520 and -cyclodextrin ( -CD) in aqueous solution. The work involves a combination of X-ray powder diffraction, high resolution electron transmission microscopy, and 13 C CP/MAS NMR studies of the solid crystal, supported by single crystal structural analysis. The results indicate a lamellar self-assembly of pseudorotaxanes with preferential orientation and disorder in the structure. For the single crystal, the unit cell was found to be triclinic (P1) and contains a -CD dimer. The surfactant molecules are located in the channel formed by these dimers along the c axis of the crystal network. The individual pseudorotaxane structure is formed by a dimer of -CDs threaded by the oxyethylene hydrophilic segment of Igepal CO-520, and a -CD dimer that binds the hydrophobic region of the surfactant. Thus, as in a CD polyrotaxane structure, this system results in an ordered self-assembly of pseudorotaxanes through the formation of a network of hydrogen bonds between head-to-head -CD dimers. Moreover, the analysis of the 1 H NMR spectra in solutions of pseudorotaxanes formed by -CD and Igepals with different lengths of the hydrophilic tails indicates equal stoichiometry patterns of both oxyethyelene and hydrophobic regions for the different supramolecules. Whereas the common hydrophobic moiety threads two macrocycles, the ratio between complexed oxyehtlyene segments and -CD is 2.5 for the hydrophilic tails. All these results show that nonionic surfactants can be used as alternative and effective linear threads to polymers and copolymers in the synthesis of supramolecular polyrotaxane solid crystal...

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Supramolecular Materials: Metal–Quinonoid Complexes

Kim

Sweigart

Lotz

2005

Encyclopedia of Inorganic Chemistry

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Simple quinones such as hydroquinone, resorcinol, and catechol can be complexed to a transition metal through the aromatic π‐system. This review focuses on the manganese and rhodium complexes of hydroquinone (H 2 Q), which bind to the metal fragment through all six aromatic carbons (η 6 ) to afford (H 2 Q)Mn(CO) 3 + and (H 2 Q)Rh(COD) + . Both of these undergo facile deprotonation to give hydrogen‐bonded semiquinone complexes, which can be deposited on HOPG surfaces. A second deprotonation occurs with concomitant electron transfer to the metal to give anionic η 4 ‐benzoquinone complexes that bind to other metals through the quinonoid oxygens. In this way, self‐assembly to metal–organic framework polymer materials results with the (benzoquinone)ML n − moiety serving as the spacer. The resultant polymers are porous and can have tetrahedral, octahedral, and square pyramidal geometries. In the case of rhodium as the metal, the quinonoid complexes are excellent catalysts for carbon–carbon coupling from aryl boronic acids, and activated olefins and aldehydes. The rhodium species also forms self‐supporting coordination networks in the presence of main group alkoxides, and these function as catalysts for acetylene polymerization. The catalysts can also be deposited strongly on silica gel supports. An exciting application of this chemistry is the derivatization of the surfaces of magnetic nanoparticles (MNPs). In the case of superparamagnetic FePt and ferrite nanoparticles (NPs), the quinonoid–metal complexes bind to the surface and function as centers for the growth of coordination polymers. This provides multiple catalytic centers that are subject to magnetic decantation, and constitutes the first generalized methodology for the combination of organometallics with NP surfaces.

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From Molecules to Crystal Engineering: Supramolecular Isomerism and Polymorphism in Network Solids

Cited by 6,275 publications

References 362 publications

3D hydrogen-bonded network built from copper(II) complexes of 1,3-propanediamine

3D hydrogen-bonded network built from copper(II) complexes of 1,3-propanediamine

Solid Crystal Network of Self-Assembled Cyclodextrin and Nonionic Surfactant Pseudorotaxanes

Supramolecular Materials: Metal–Quinonoid Complexes

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