Molecular inclusion in functionalized macrocycles. Part 9. The crystal and molecular structure of p-t-butylcalix[4]arena–anisole (2 : 1) complex: a new type of cage inclusion compound

Ungaro, Rocco; Pochini, Andrea; Andreetti, G. D.; Domiano, P.

doi:10.1039/p29850000197

Cited by 123 publications

(86 citation statements)

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“…E ach phenol ring is inclined at 33 ° to the fourfold crystallographic ro tatio n axis or at 123 ° with respect to the plane defined by the four m ethylene carbon atoms. The resulting cone con form ation is very sim ilar to known C4-sym m etrical inclusion com plexes of p-/m -butylcalix [4]arene with toluene [42] or anisole (2:1 com plex) [43].…”

Section: -Ra Y Crystal Structure Determ Inationmentioning

confidence: 64%

The Inclusion of Carbon Disulfide in p-tert-Butylcalix[4]-and [6 ]arene - A Combined Crystallographic and Vibrational Spectroscopic Study

Schatz

Schildbach

Lentz

et al. 2000

Zeitschrift Für Naturforschung B

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Jürgen Schatz3, Frank Schildbacha, Axel L en tzb, Sylvia R a stä tte rb, Joachim Schilling5, Jö rg D o rm an n c, A n d reas R uoffc, and Tony D eb ae rd em ae k erd The inclusion complexes formed from carbon disulfide and /?-r£7-r-butylcalix[4]arene ( 1 C S 2) or /?-rm-butylcalix[6]arene (2-C S2) were investigated by X-ray crystal structure analysis, infrared (IR) and Raman spectroscopy. The complex 1 C S 2 crystallises in the space group P4/n, 2 C S 2 in the space group P2xln. In case of /?-rm-butylcalix[4]arene as host the carbon disulfide molecule is included in the cavity. In the crystal structure of p-rm -butylcalix[6]arene clathrate, self-com plexation o f one rm-butyl group in the cavity o f another calix[6]arene can be observed. Due to inclusion, the symmetry of CS2 is lowered both in the prm -butylcalix[4]arene and p-rm-butylcalix[6]arene case causing significant shifts in the fully assigned infrared and Raman spectra.

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Section: -Ra Y Crystal Structure Determ Inationmentioning

confidence: 64%

The Inclusion of Carbon Disulfide in p-tert-Butylcalix[4]-and [6 ]arene - A Combined Crystallographic and Vibrational Spectroscopic Study

Schatz

Schildbach

Lentz

et al. 2000

Zeitschrift Für Naturforschung B

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“…The parent compound itself has proven to be an excellent host for investigating the forces guiding self-assembly, with a range of 1:1 and 2:1 inclusion compounds having been reported. [17][18][19][20][21][22] Inclusion of alkanes follow this trend quite well, forming a series of 1:1 and 2:1 inclusion compounds with four-fold symmetry matching that of the host. [22,23] As a host for use in producing molecular receptors with potential materials applications, 4tBC4A has generally been overlooked due to its relatively low solubility in common organic solvents (and insolubility in aqueous systems) and the relative simplicity of the inclusion motifs it exhibits.…”

Section: Introductionmentioning

confidence: 99%

Pseudopolymorphism of Aliphatic Amine/4‐tert‐Butylcalix[4]arene Inclusion Compounds: Supramolecular Stabilization as a Route to Polar Clusters and Layers

Brown

Udachin

Enright

et al. 2006

Chemistry A European J

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4-tert-Butylcalix[4]arene (4tBC4A) is a versatile host capable of forming a variety of 1:1 and 2:1 inclusion compounds typically stabilized through van der Waals interactions. Preliminary studies in our group have demonstrated that inclusion of n-butylamine in 4tBC4A results in a series of pseudopolymorphic inclusion compounds, including a new 3:1 inclusion motif. Using a combination of SCXRD, TGA, solid state NMR, and PXRD, we now elaborate upon the relationship between these pseudopolymorphs. We also demonstrate that larger amines demonstrate a similar degree of pseudopolymorphism, allowing for the production of customized materials using self-assembly guided by competing weak forces. Finally, we comment on the structural implications of the relative dominance such forces in the formation of calixarene-based supramolecular frameworks.

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“…Compared to the conventional interactions such as hydrogen bonding, electrostatic, and the hydrophobic interaction, the cation-p interaction has been relatively underappreciated [42]. The p-rich cavities composed of the aromatic nuclei systems can capture metal ions in their pores with high affinity by cation-p interaction [23,43,44]. For example, some cationic guest molecules, such as ammonium ion and Ag ion, are included in the cone cavity through the cation-p interaction to form host-guest complexes [45][46][47][48][49][50].…”

Section: Characterization Of Uv-vis Spectramentioning

confidence: 99%

In situ synthesis of Ag nanoparticles in aminocalix[4]arene multilayers

Gao

Yuan

Lü

et al. 2010

Journal of Colloid and Interface Science

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Molecular inclusion in functionalized macrocycles. Part 9. The crystal and molecular structure of p-t-butylcalix[4]arena–anisole (2 : 1) complex: a new type of cage inclusion compound

Cited by 123 publications

References 1 publication

The Inclusion of Carbon Disulfide in p-tert-Butylcalix[4]-and [6 ]arene - A Combined Crystallographic and Vibrational Spectroscopic Study

The Inclusion of Carbon Disulfide in p-tert-Butylcalix[4]-and [6 ]arene - A Combined Crystallographic and Vibrational Spectroscopic Study

Pseudopolymorphism of Aliphatic Amine/4‐tert‐Butylcalix[4]arene Inclusion Compounds: Supramolecular Stabilization as a Route to Polar Clusters and Layers

In situ synthesis of Ag nanoparticles in aminocalix[4]arene multilayers

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