2026-04-17T03:26:31Zhttps://recercat.cat/oai/requestoai:recercat.cat:2072/5327962024-12-20T19:38:55Zcom_2072_300912com_2072_4427col_2072_301309
Low Oxidation State Cobalt Center Stabilized by a Covalent Organic Framework to promote Hydroboration of Olefins
Gutiérrez, Luis
Martin - Diaconescu, Vlad
Casadevall, Carla
Oropeza, Freddy
de la Peña O’Shea, Victor A.
Meng, JingJing
Ortuño, Manuel A.
Lloret - Fillol, Julio
Site
isolation of
unstable
catalytic species within a
reticular
material is an appealing strategy
for
mitigating catalyst
decom
position whil
e
creating
catalysts with improved activity and robustness.
The
covalent organic framework (COF) based on
single cobalt
sites
coordinated to
2,2’
-
bipyridine
(
COF
bpy
Co
)
exploit
s
the
isolated nature
of the cobalt sites
to
stabilize low
-
valent single sites and catalyze the
hydroboration
of olefins.
Terminal alkyl
boronate
esters were obtained
using 1
mol
%
COF
bpy
Co
loading
starting from terminal alkenes a
nd
internal alkenes,
thanks to a tandem isomerization
-
hydroboration
proc
ess
.
The catalytic activity of
COF
bpy
Co
was
maintained after
being
recycled
six
times.
Experimental and computational studies
suggested
the {
(bpy
•−
)Co
I
(THF)
2
} moiety
as the active catalytic species within the COF
. The mechanism
follows
an
oxidative boryl
migration, followed by isomerization and reductive elimination to form the boronate ester.
2024-02-15T01:45:05Z
2024-04-23T11:11:35Z
2024-02-15T01:45:05Z
2024-04-23T11:11:35Z
2024-02-15T01:45:05Z
2024-04-23T11:11:35Z
2023-02-15
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://hdl.handle.net/2072/532796
https://doi.org/10.1021/acscatal.2c05442
eng
CERCA Program/Generalitat de Catalunya
Severo Ochoa Excellence Accreditation 2020 - 2023 (CEX2019 - 000925 - S, MIC/AE
European Research Foundation for H2020 project ERC - 2015 - CoG GREENLIGHT_REDCAT 648304
AGAUR 2017 - SGR - 1647
MICINN (PID2019 - 110050RB - I00
PSRC Multi - User Equipment Call (EP/P030467/1
Government of Spain (under project PI D2020 - 119116RA - I00)
Xunta Distinguished Researcher program (ED431H 2020/2
the Xunta de Galicia (Centro singular deinvestigación de Galicia accreditation 2019 - 2022, ED431G 2019/03
European Union (European Regional Development Fund - ERDF
European Commission for Horizon 2020 Marie Skłodowska‐Curie Individual Fellowship (890745‐SmArtC)
info:eu-repo/semantics/openAccess
Creative Commons.Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
ACS Publications
RECERCAT (Dipòsit de la Recerca de Catalunya)