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Remarkably, both the SBET and CO2 uptake values for these
NH2-RhMOP products are significantly higher than for their Cu(II)
analogue (non-porous to N2; CO2 uptake = 0.70 mmol CO2 gꢀ1).28
In conclusion, we have demonstrated strategic use of protecting
groups for directionally-controlled coordination chemistry synthesis
of Rh(II)-based MOPs with previously inaccessible functionalities.
Using our orthogonal protection/deprotection process, we prepared
two new Rh(II)-based MOPs with 24 peripheral COOH or NH2
moieties, without affecting the structural integrity or microporosity.
Owing to their strong processability, the protected Rh(II)-based
MOPs can be then deprotected either in solid state or in solution.
Moreover, we dissolved COOH-RhMOP in water at near-neutral pH.
Interestingly, the presence of 24 directional COOH or NH2 groups in
a zero-dimensional porous scaffold might be of particular interest
for Reticular Chemistry.
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This work was supported by the Spanish MINECO (Projects
RTI2018-095622-B-I00), the Catalan AGAUR (Project 2017 SGR 238),
the ERC, under the EU-FP7 (ERC-Co 615954), and the CERCA
Program/Generalitat de Catalunya. ICN2 is supported by the
Severo Ochoa programme from the Spanish MINECO (Grant
No. SEV-2017-0706). A. C. S. and T. G. thank the Spanish
MINECO for Juan de la Cierva fellowships (IJCI-2016-29802 and
FJCI-2017-31598). J. A. acknowledges the Generalitat de Catalunya
for an FI fellowship (2016FI B 00449).
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Conflicts of interest
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16547–16553; (b) A. Carne-Sanchez, G. A. Craig, P. Larpent,
V. Guillerm, K. Urayama, D. Maspoch and S. Furukawa, Angew.
Chem., Int. Ed., 2019, 58, 6347–6350.
The authors declare that there are no conflicts of interest in this
publication.
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12788 | Chem. Commun., 2019, 55, 12785--12788
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