10.1021/cm800686k.s001
Francesca Bonino
Francesca
Bonino
Sachin Chavan
Sachin
Chavan
Jenny G. Vitillo
Jenny G.
Vitillo
Elena Groppo
Elena
Groppo
Giovanni Agostini
Giovanni
Agostini
Carlo Lamberti
Carlo
Lamberti
Pascal D. C. Dietzel
Pascal
D. C. Dietzel
Carmelo Prestipino
Carmelo
Prestipino
Silvia Bordiga
Silvia
Bordiga
Local Structure of CPO-27-Ni Metallorganic Framework upon Dehydration and Coordination of NO
American Chemical Society
2008
393 K
CPO
H 2O molecules
site
Quantitative data
Ni
microcalorimetric measurements
IR
honeycomb structure
XRD
3 D network
XANES
water physisorbed
sample
presence causes
vibrational
EXAFS
UV
MOF material
Local Structure
2008-08-12 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Local_Structure_of_CPO_27_Ni_Metallorganic_Framework_upon_Dehydration_and_Coordination_of_NO/2921794
Coordination polymer Ni<sub>2</sub>(dhtp)(H<sub>2</sub>O)<sub>2</sub>ยท8H<sub>2</sub>O is a 3D network that maintains crystallinity and porosity after solvent removal. A mild thermal treatment in high vacuo at 393 K removes not only water physisorbed on the walls of the structure but also water directly coordinated to the Ni(II) sites. This procedure allows us to obtain a MOF material with honeycomb structure able to strongly coordinate NO. In this contribution the characterization of CPO-27-Ni in respect to structural (EXAFS compared to XRD), vibrational (IR and Raman) and electronic (UV, XANES, and luminescence) properties is described in the case of the as prepared sample, of the dehydrated sample and after NO interaction. NO is strongly bonded at the Ni(II) sites, forming a 1:1 adduct; its presence causes large modification of the vibrational and electronic properties of the material with respect to the dehydrated one. Quantitative data considering energetic aspects (microcalorimetric measurements) are also included. The ability of H<sub>2</sub>O molecules to slowly displace NO from the Ni(II) sites makes this material a promising candidate for NO delivery inside biological tissues.