Limits...
Orthogonal halogen and hydrogen bonds involving a peptide bond model†Electronic supplementary information (ESI) available: Experimental part, DSC, IR spectroscopic and crystallographic data. CCDC 899779-899785. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4ce01514bClick here for additional data file.Click here for additional data file.

Vasylyeva V, Nayak SK, Terraneo G, Cavallo G, Metrangolo P, Resnati G - CrystEngComm (2014)

Bottom Line: The peptide bond model N-methylacetamide self-assembles with a range of dihalotetrafluorobenzenes forming co-crystals that all show the occurrence of orthogonal hydrogen and halogen bonds.

View Article: PubMed Central - PubMed

Affiliation: NFMLab , D.C.M.I.C. "Giulio Natta" , Politecnico di Milano , Via Mancinelli 7 , 20131 Milan , Italy . Email: pierangelo.metrangolo@polimi.it ; Email: giancarlo.terraneo@polimi.it ; ; Tel: (+39) 02 2399 3041.

ABSTRACT

The peptide bond model N-methylacetamide self-assembles with a range of dihalotetrafluorobenzenes forming co-crystals that all show the occurrence of orthogonal hydrogen and halogen bonds.

No MeSH data available.


N–H···O HBs drive the formation of 1D infinite chains in the crystal packing of the homocrystal 1.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4317971&req=5

fig1: N–H···O HBs drive the formation of 1D infinite chains in the crystal packing of the homocrystal 1.

Mentions: We first re-determined the crystal structure of 1 at low temperature by in situ cryo-crystallization using a zone-melting procedure with an optical heating and crystallization device (OHCD).9 This was intended to get rid of static disorder that is found in the previously reported structures of NMA.10 A fully ordered crystal structure of 1 resulted in the Pnma space group. Classical N–H···O (1.878(2) Å)11 HBs link NMA molecules into infinite 1D chains running along the a crystallographic axis (Fig. 1). The two interacting groups N–H and CO are in the trans conformation, mimicking the molecular arrangement of the polypeptide backbone observed in β-sheet structures.12


Orthogonal halogen and hydrogen bonds involving a peptide bond model†Electronic supplementary information (ESI) available: Experimental part, DSC, IR spectroscopic and crystallographic data. CCDC 899779-899785. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4ce01514bClick here for additional data file.Click here for additional data file.

Vasylyeva V, Nayak SK, Terraneo G, Cavallo G, Metrangolo P, Resnati G - CrystEngComm (2014)

N–H···O HBs drive the formation of 1D infinite chains in the crystal packing of the homocrystal 1.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4317971&req=5

fig1: N–H···O HBs drive the formation of 1D infinite chains in the crystal packing of the homocrystal 1.
Mentions: We first re-determined the crystal structure of 1 at low temperature by in situ cryo-crystallization using a zone-melting procedure with an optical heating and crystallization device (OHCD).9 This was intended to get rid of static disorder that is found in the previously reported structures of NMA.10 A fully ordered crystal structure of 1 resulted in the Pnma space group. Classical N–H···O (1.878(2) Å)11 HBs link NMA molecules into infinite 1D chains running along the a crystallographic axis (Fig. 1). The two interacting groups N–H and CO are in the trans conformation, mimicking the molecular arrangement of the polypeptide backbone observed in β-sheet structures.12

Bottom Line: The peptide bond model N-methylacetamide self-assembles with a range of dihalotetrafluorobenzenes forming co-crystals that all show the occurrence of orthogonal hydrogen and halogen bonds.

View Article: PubMed Central - PubMed

Affiliation: NFMLab , D.C.M.I.C. "Giulio Natta" , Politecnico di Milano , Via Mancinelli 7 , 20131 Milan , Italy . Email: pierangelo.metrangolo@polimi.it ; Email: giancarlo.terraneo@polimi.it ; ; Tel: (+39) 02 2399 3041.

ABSTRACT

The peptide bond model N-methylacetamide self-assembles with a range of dihalotetrafluorobenzenes forming co-crystals that all show the occurrence of orthogonal hydrogen and halogen bonds.

No MeSH data available.