Encapsulation of copper(I)-Schiff base complex in NaY nanoporosity: An efficient and reusable catalyst in the synthesis of propargylamines via A3-coupling (aldehyde-amine-alkyne) reactions

Aluminum metal–organic framework as a new host for preparation of encapsulated metal complex catalysts

“…In addition, CuPhen/MIL gave a catalytic activity higher than the CuPhen/Y and pure CuPhen catalysts, indicating that the properties of the hosts have great influence on the encapsulated CuPhen. The higher activities obtained over encapsulated CuPhen than over neat CuPhen are due to the site isolation, which may inhibit the degradation of the metal complex in the presence of H 2 O 2 [32,33]. The differences in catalytic activities obtained over CuPhen/MIL and CuPhen/Y may be a consequence of the different structural properties of the two hosts.…”

Encapsulation of a copper(II) tetradentate Schiff base complex in zeolite NaY: an efficient heterogeneous catalyst for the synthesis of benzimidazoles

“…Furthermore, atomic absorption spectroscopy confirmed that no leaching was observed when the encapsulated complex was used as a catalyst, whereas moderate leaching of copper ions occurred when the reaction was performed over Cu(II)/Y [26]. The encapsulated complex also showed better catalytic efficiency than its free analogue, due to isolation of the copper centers in the former [27].…”

Investigation of thermal properties of Al1050/SS304 sandwich composite sheet by using a numerical, analytical and experimental approach

“…The observed peak at 1540 cm −2 represents the stretching vibrations of the alkene (C=C) group of adhesive material [28,29] whereas peaks at 1223 cm −2 and 1160 cm −2 indicate the stretching frequencies of ether (C-O) linkage [27] which can be observed from figure 2(a). The IR spectrum for case-II showed peaks at 2927 cm −2 and 2859 cm −2 indicating the stretching vibrations of the C-H bond [30,31] of activator whereas the alkene (C=C) functionality of activator [32] is observed at 1582 cm −2 . The peaks at 1361 cm −2 , 1169 cm −2 , and 1038 cm −2 correspond to the C-N group [31][32][33] of adhesive material which can be observed from figure 2(b).…”

“…The IR spectrum for case-II showed peaks at 2927 cm −2 and 2859 cm −2 indicating the stretching vibrations of the C-H bond [30,31] of activator whereas the alkene (C=C) functionality of activator [32] is observed at 1582 cm −2 . The peaks at 1361 cm −2 , 1169 cm −2 , and 1038 cm −2 correspond to the C-N group [31][32][33] of adhesive material which can be observed from figure 2(b).…”