Chemistry Reference
In-Depth Information
Fig. 2.17
Condensation of aniline (
a
) with benzaldehyde (
b
) forms the molecular N-benzylidene-
aniline (
c
). Condensation of divergent (
d
) with ditopic (
e
) leads to the rod-like bis-imines
(
f
) which will join together the tetrahedral building blocks to give the diamond structure of COF-
300:
g
single framework (space filling, C
gray
and
pink
, N
green
, H
white
) and H representa-
tion of the dia-c5 topology. Reprinted with permission from Ref. [
13
]. Copyright 2009, American
Chemical Society
an extended 3-D framework structure. Through analyzing the simulated powder
patterns and the experimental measurements, COF-300 obtains a perfect match in
peak position from the dia-c5 topology.
2.3.5 Structural Studies of Crystalline POFs
PXRD is an important tool to reveal the regularity porous materials. Deduced from
XRD data, the COFs using DCC reactions are highly crystalline polymers through
analyzing the simulated powder patterns and the experimental results. The structural
