Reticular Synthesis of Multinary Covalent Organic Frameworks

Article abstract of DOI:10.1021/jacs.9b05626

Hexagonal hexaminophenyl benzene, tetragonal tetrakis(4-aminophenyl) ethane, and trigonal 1,3,5-tris(p-formylphenyl)benzene were all joined together by imine linkages to yield a 2D porous covalent organic framework with unprecedented tth topology, termed

Full text of DOI:10.1021/jacs.9b05626

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Communication
Reticular Synthesis of Multinary Covalent Organic Frameworks
Bing Zhang, Haiyan Mao, Roc Matheu, Jeffrey A. Reimer, Sultan A. Alshmimri, Saeed Alshihri, and Omar M. Yaghi
J. Am. Chem. Soc., Just Accepted Manuscript • DOI: 10.1021/jacs.9b05626 • Publication Date (Web): 05 Jul 2019
Downloaded from http://pubs.acs.org on July 5, 2019
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hcb hxl
kgm sql kgd
(b)
tth mta mtb
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mtc mtd mte

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COF-346 (tth)
COF-360 (kgd)
O
H2N
NH2
O
DMA/Mesitylene
O
6 M Acetic acid
H2N
NH2
120 oC, 3 d
O
DCB/BuOH
6 M Acetic acid
120 oC, 3 d
H2N
NH2
60o
O
O
X=NH2
HAPB
HFPB
O
X
120o
O
X
X
O
TFPB
TAPB (X=NH2)
TFPB (X=CHO)
X=CHO
H2N
NH2
H2N
NH2
DCB/BuOH
6 M Acetic acid
120 oC, 3 d
60o
H2N
NH2
H2N
NH2
ETTA
ETTA
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tth-defect
COF-340

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Simulated
(a)
Experimental
Difference
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Bragg position
Rwp = 8.43%
Rp = 6.23%
COF-346
5 10 15 20 25 30 35
2θ (º ; Cu Kα)
(b)
400
350
300
250
200
150
100
50
1.6
10.4 Å
1.4
1.2
1.0
0.8
21.9 Å
0.6
0.4
0.2
0.0
10 20 30 40 50 60 70 80 90 100
Pore width (Å)
0
0.0 0.2 0.4 0.6 0.8 1.0
P/P
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