resolver

192 Chapter 7
7.5 Supplementary details in Outlook
Synthesis of mixed-component MOF (S1-5, [Cu3-XZnx(BTC)2-y(5-NO2-ip)y]n)
3.6 mmol of a mixture of Cu(NO3)2∙3H2O (80%, 2.88 mmol, 696 mg) and Zn(NO3)2∙6H2O
(20%, 0.72 mmol. 214 mg) was dissolved into a 15 ml solution of H2O/ethanol (1:1) in a
Teflon vessel. Subsequently, mixed-linkers (H3BTC and 5-NO2-ip) in a total molar amount
of 2 mmol (see Table 7.5 for the molar ratio differences for each sample) were added. After
the Teflon vessel was sealed in an autoclave, it was kept in the oven at 125 °C for 12h. The
resulting power product was collected by centrifuge and washed several times with
distilled water and ethanol, respectively. Subsequently, the powder was soaked in the
fresh ethanol for 24 h. After soaking the collected powder was dried under ambient
conditions and further activated by heating at 120 °C for 24 h under dynamic vacuum (ca.
10 -3 mbar).
Table 7.5. Feeding molar ratios and amounts of the linkers used in the syntheses of the S1-5.
samples
H 3 BTC : (H 3 BTC + 5-NO 2 -ipH 2 )
H 3 BTC 5-NO 2 -ipH 2
Mass
(mg)
5-NO 2 -ipH 2 : (H 3 BTC + 5-
NO 2 -ipH 2 )
Mass
(mg)
S1 90% 378 10% 42
S2 80% 336 20% 84
S3 70% 294 30% 127
S4 50% 210 50% 211
S5 0 - 100% 422
Scheme 7.4. Scheme illustration of preparation for mixed-component MOFs.