Amides Do Not Always Work: Observation of Guest Binding in an Amide-Functionalized Porous Metal-Organic Framework.
An amide-functionalized metal organic framework (MOF) material, MFM-136, shows a high CO2uptake of 12.6 mmol g-1at 20 bar and 298 K. MFM-136 is the first example of an acylamide pyrimidyl isophthalate MOF without open metal sites and, thus, provides a unique platform to study guest binding, particularly the role of free amides. Neutron diffraction reveals that, surprisingly, there is no direct binding between the adsorbed CO2/CH4molecules and the pendant amide group in the pore. This observation has been confirmed unambiguously by inelastic neutron spectroscopy. This suggests that introduction of functional groups solely may not necessarily induce specific guest-host binding in porous materials, but it is a combination of pore size, geometry, and functional group that leads to enhanced gas adsorption properties.
School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K.
Oguarabau
O
Benson
ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire, OX11 0QX, U.K.
Ivan
I
da Silva
School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K.
Stephen P
SP
Argent
School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K.
Rafel
R
Cabot
School of Chemistry, University of Manchester , Manchester, M13 9PL, U.K.
Mathew
M
Savage
School of Chemistry, University of Manchester , Manchester, M13 9PL, U.K.
Harry G W
HG
Godfrey
School of Chemistry, University of Manchester , Manchester, M13 9PL, U.K.
Yong
Y
Yan
ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire, OX11 0QX, U.K.
Stewart F
SF
Parker
ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire, OX11 0QX, U.K.
Pascal
P
Manuel
School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K.
Matthew J
MJ
Lennox
School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K.|Department of Chemistry, University of Liverpool , Liverpool, L69 7ZD, U.K.
Tamoghna
T
Mitra
School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K.|School of Chemistry, Cardiff University , Cardiff, CF10 3XQ, U.K.
Timothy L
TL
Easun
School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K.
William
W
Lewis
School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K.
Alexander J
AJ
Blake
School of Chemistry, University of Nottingham , Nottingham, NG7 2RD, U.K.
Elena
E
Besley
School of Chemistry, University of Manchester , Manchester, M13 9PL, U.K.
Sihai
S
Yang
School of Chemistry, University of Manchester , Manchester, M13 9PL, U.K.
Martin
M
Schröder
Chem Soc Rev. 2014 Aug 21;43(16):6141-72
25009001
Science. 2012 Mar 30;335(6076):1606-10
22461607
Chem Commun (Camb). 2012 Mar 25;48(25):3058-60
22222221
Angew Chem Int Ed Engl. 2012 Feb 20;51(8):1826-9
22213592
Angew Chem Int Ed Engl. 2010 Feb 8;49(7):1258-62
20084655
J Am Chem Soc. 2009 Feb 18;131(6):2159-71
19159298
Nat Chem. 2014 Feb;7(2):121-9
25615665
Chem Commun (Camb). 2012 Jul 18;48(56):7025-7
22314412
Chemistry. 2016 Apr 25;22(18):6277-85
27031809
Science. 2010 Oct 29;330(6004):650-3
21030651
Sci Adv. 2015 Dec 18;1(11):e1500421
26824055
Chemistry. 2014 Jun 10;20(24):7317-24
24806046
Angew Chem Int Ed Engl. 2012 Feb 6;51(6):1412-5
22213672
Acc Chem Res. 2014 Feb 18;47(2):296-307
24168725
J Am Chem Soc. 2011 Feb 2;133(4):748-51
21174431
Inorg Chem. 2013 Apr 1;52(7):3962-8
23514197
Inorg Chem. 2014 Sep 2;53(17):8842-4
25118959
Angew Chem Int Ed Engl. 2010 Jun 21;49(27):4615-8
20491101
Nature. 2013 Mar 7;495(7439):80-4
23446349