Search

Your search keyword '"Verpoort, Francis"' showing total 26 results
Start Over Author "Verpoort, Francis" Publication Type Books
26 results on '"Verpoort, Francis"'

2. Contributors

Author

Abdullah, Muhammad, primary, Abid, Muhammad Amin, additional, Aftab, Akasha, additional, Agrawal, Nikita, additional, Ahmad, Awais, additional, Ahmad, Ikram, additional, Ahmad, Muhammad Awais, additional, Ahmed, Tajdar, additional, Ali, Rabia, additional, Anwar, Amira, additional, Ashfaq, Tayyaba, additional, Asiri, Abdullah M., additional, Aslam, Sadia, additional, Azeem, Farrukh, additional, Azeem, Muhammad Khalid, additional, Basit, Erha, additional, Basit, Irha, additional, Chee, Ching Yern, additional, Dharmaraj, Divya, additional, Dubal, Deepak, additional, Ethiraj, Kannapiran, additional, Gangil, Brijesh, additional, Gul, Asghari, additional, Gulzar, Tahsin, additional, Habbiba, Omme, additional, Hussain, Sabir, additional, Hussain, Shahid, additional, Hynes, Navasingh Rajesh Jesudoss, additional, Ijaz, Usman, additional, Jannat, Fakiha Tul, additional, Karuppiah, Kannan, additional, Khan, Anish, additional, Kiyani, Maryam Zaheer, additional, Krishnamoorthy, Madhuri, additional, Kumar, Jagatheesa Perumal Senthil, additional, Mahendra, Muktishree, additional, Manzoor, Hamid, additional, Maqsood, Maryam, additional, Mubarak, N.M., additional, Nadeem, Habibullah, additional, Nambiar, Reshma B., additional, Perumal, Anand Babu, additional, Pervaiz, Muhammad, additional, Rajendran, Kumar, additional, Ramzan, Shamim, additional, Rashid, Sumbal, additional, Raza, Syed Abbas, additional, Rizwan, Muhammad, additional, Sadiku, Emmanuel Rotimi, additional, Saeed, Saad Maroof, additional, Sankaranarayanan, Ramakrishnan, additional, Sellamuthu, Periyar Selvam, additional, Shamsi, Farwa Batool, additional, Shenbaga Velu, P., additional, Singh, Tej, additional, Sujana, Jesudoss Angela Jennifa, additional, Santulli, Carlo, additional, Tabassum, Hina, additional, Tabassum, Hira, additional, Tabassum, Sobia, additional, Verpoort, Francis, additional, Vignesh, N.J., additional, Younas, Madiha, additional, and Zubair, Muhammad, additional

Published
2021
Full Text
View/download PDF

4. Self-healing fiber-reinforced epoxy composites

Author

Kumar, R., primary, Hynes, N. Rajesh Jesudoss, additional, Manju, R., additional, Senthamaraikannan, P., additional, Saravanakumar, S.S., additional, Khan, Anish, additional, Bharathi, S.R. Sundara, additional, Asiri, Abdullah Mohamed, additional, Khan, Imran, additional, Khan, Mohammad Mujahid Ali, additional, and Verpoort, Francis, additional

Published
2020
Full Text
View/download PDF

5. List of contributors

Author

Alem, Halima, primary, Banerjee, Prantik, additional, Bianchi, C.L., additional, Capucci, V., additional, Cerrato, G., additional, Chakrabarti, Sampa, additional, Chakraborty, Jeet, additional, Cheralathan, K.K., additional, Di Michele, A., additional, Djellabi, R., additional, Elaheh, Kowsari, additional, Eluagwule, Benjamin, additional, Frochot, Céline, additional, Hamieh, Tayssir, additional, Hussain, Chaudhery Mustansar, additional, Krishnan, Venkata, additional, Kumar, Ashish, additional, Kumari, M. Mamatha, additional, Malu, T.J., additional, Meng, Xiangchao, additional, Mitra, Pallavi, additional, Morandi, S., additional, Naimeh, Seifvand, additional, Nath, Ipsita, additional, Pacheco-Alvarez, Martin, additional, Peralta-Hernandez, Juan Manuel, additional, Picos, Ricardo, additional, Prakash, R. Mithun, additional, Rajbongshi, Biju Mani, additional, Ramchiary, Anjalu, additional, Rao, V. Navakoteswara, additional, Rodriguez-Narvaez, Oscar M., additional, Roques-Carmes, Thibault, additional, Roy, Anirban, additional, Sakar, M., additional, Shankar, M.V., additional, Sharma, Vishal, additional, Toufaily, Joumana, additional, Verpoort, Francis, additional, Villiéras, Frédéric, additional, Wang, Liang, additional, Wang, Mengqing, additional, and Zhang, Jason, additional

Published
2020
Full Text
View/download PDF

6. List of contributors

Author

Akram, M. Khursheed, primary, Alegaonkar, Prashant S., additional, Ansari, Afzal, additional, Ansari, Mohammad Omaish, additional, Ansari, Omaish, additional, Arun Ramnath, R., additional, Asiri, Abdullah Mohamed, additional, Azum, Naved, additional, Bharathi, S.R. Sundara, additional, Boddula, Rajender, additional, Burhan, Hakan, additional, Chinke, Shamal L., additional, Eduok, Ubong, additional, Ghaffari, Maryam, additional, Han, Baoguo, additional, Hussain, Syed Zajif, additional, Hynes, N. Rajesh Jesudoss, additional, Jawaid, Mohammad, additional, Jilani, Asim, additional, Khan, Aftab Aslam Parwaz, additional, Khan, Anish, additional, Khan, Imran, additional, Khan, Mohammad Mujahid Ali, additional, Khursheed Akram, M., additional, Kostopoulos, Vassilis, additional, Kotrotsos, Athanasios, additional, Kumar, L. Rajesh, additional, Kumar, R., additional, Manju, R., additional, Mobaraki, Mohammadmahdi, additional, Mozafari, Masoud, additional, Nagarajan, S., additional, Ohaeri, Enyinnaya, additional, Othman, Mohd Hafiz Dzarfan, additional, Pothu, Ramyakrishna, additional, Pruncu, Catalin Iulian, additional, Pulikkalparambil, Harikrishnan, additional, Ramesh, M., additional, Rangappa, Sanjay Mavinkere, additional, Rub, Malik Abdul, additional, Sanjay, M.R., additional, Sankaranarayanan, R., additional, Saravanakumar, S.S., additional, Saygili, Suna, additional, Senthamaraikannan, P., additional, Shaban, Mohamed, additional, Siddiqi, Weqar Ahmad, additional, Siddiqui, Vasi Uddin, additional, Siengchin, Suchart, additional, Sunatda, Arayachukiat, additional, Szpunar, Jerzy, additional, Verpoort, Francis, additional, Vu Anh, Doan, additional, Wang, Danna, additional, Yamaguchi, Masayuki, additional, Zhang, Wei, additional, and Şen, Fatih, additional

Published
2020
Full Text
View/download PDF

8. Ring Opening Metathesis Polymerization

Author

Lyapkov, Alexey, primary, Kiselev, Stanislav, additional, Bozhenkova, Galina, additional, Kukurina, Olga, additional, Yusubov, Mekhman, additional, and Verpoort, Francis, additional

Published
2018
Full Text
View/download PDF

21. Ruthenium–Indenylidene Complexes Bearing Saturated N-Heterocyclic Carbenes: Synthesis and Application in Ring-Closing Metathesis Reactions.

Author

Monsaert, Stijn, De Canck, Els, Drozdzak, Renata, Van Der Voort, Pascal, Hendrickx, Pieter M. S., Martins, José C., and Verpoort, Francis

Abstract

The synthesis of complexes of the general formula Cl2Ru(SIMes)(L)(3-phenylinden-1-ylidene), 3a (L = PCy3), 3b (L = PPh3), 3c (L = py) and Cl2Ru(SIMe)(L)(3-phenylinden-1-ylidene), 4c (L = PCy3), 4b (L = PPh3), 4c (L = py) from commercially available Cl2Ru(PR3)2(3-phenylinden-1-ylidene), 2a (R = Cy), 2b (R = Ph), is reported, and the summed complexes proved to be useful catalysts for various ring-closing metathesis reactions. The catalytic data reported furthermore demonstrate that the substitution pattern of the N-aryl group has a definite influence on the activity of the second generation indenylidene catalysts for a given metathesis reaction, i.e. catalysts containing the SIMe-ligand showed improved initiation compared to the more robust SIMes substituted catalysts. A strong temperature effect was observed on all of the reactions tested. It is shown that complexes containing the SIMe-ligand display higher initiation efficiency then their corresponding SIMes analogues. [ABSTRACT FROM AUTHOR]

Published
2010
Full Text
View/download PDF

22. New N-Heterocyclic Carbene Ligands in Grubbs and Hoveyda–Grubbs Catalysts.

Author

Monsaert, Stijn, Ledoux, Nele, Drozdzak, Renata, Van Der Voort, Pascal, and Verpoort, Francis

Abstract

A series of N-heterocyclic carbene (NHC) ligands bearing aliphatic amino side groups were synthesized and reacted with the Grubbs first generation catalyst. Reactions involving symmetrical, aliphatic NHCs did not allow the isolation of any pure NHC substituted complexes due to their instability. Unsymmetrical NHCs having a planar mesityl group on one amino side reacted with Grubbs catalyst in a favorable manner, and the resulting complexes were stable enough to be isolated. X-ray crystallographic analysis demonstrated that the mesityl group is co-planar with the phenyl ring of the benzylidene, which indicates that a Π–Π interaction between the mesityl arm and the benzylidene moiety might constitute an important structural element. Catalysts substituted with an NHC derived from a primary or secondary amino-group were found to surpass the parent-complex for the ROMP of cycloocta-1,5-diene. The catalyst substituted with an NHC derived from tBu-NH2 was considerably less metathesis active. Also new N-alkyl-N′-(2,6-diisopropylphenyl) heterocyclic carbenes were synthesized. These NHC ligands revealed a different reactivity towards Grubbs complexes than the hitherto reported imidazolinylidenes: (i) facile bis(NHC) coordination was found, and (ii) both NHCs on the bis(NHC) complexes can be exchanged with a phosphine, thereupon regenerating the Grubbs first generation complex. Furthermore, a comparison between the classical Hoveyda–Grubbs complexes and complexes substituted with N-alkyl-N′-(aryl) heterocyclic carbenes demonstrates that the introduction of one aliphatic group into the NHC framework does not improve the catalytic activity in any of the tested metathesis reactions. The introduction of two aliphatic amino side groups enhances the reactivity in the ROMP reaction while the increase of steric interactions lowers the CM activity. The lower activity of the N-alkyl-N′-(2,6-diisopropylphenyl) heterocyclic carbene complexes compared with the N-alkyl-N′-mesityl heterocyclic carbene complexes, may analogously be attributed to a more demanding steric environment. While small differences in donor capacities might cause a significantly different catalytic behavior, it is thus plausible that subtle steric differences exert a more determining influence on the activity of the catalysts. In addition, the obtained results confirm that the NHC's amino side groups play a pivotal role in determining the reactivity, selectivity as well as the stability of the corresponding catalysts. [ABSTRACT FROM AUTHOR]

Published
2010
Full Text
View/download PDF

23. Olefin Metathesis Mediated By: - Schiff Base Ru-Alkylidenes -Ru-Alkylidenes Bearing Unsymmetrical NH Ligands.

Author

Imamoglu, Yavuz, Dragutan, Valerian, Karabulut, Solmaz, Monsaert, Stijn, Voort, Pascal Van Der, Ledoux, Nele, Allaert, Bart, Drozdzak, Renata, and Verpoort, Francis

Abstract

The classic Grubbs second-generation complex 2 was modified through 1. The introduction of a bidentate Schiff base ligand 2. Changes in the amino side groups of the NHC ligand Representative olefin metathesis test reactions show the effects induced by the ligand modifications and demonstrate some interesting new properties of the described catalysts. catalysts. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF

24. Ring-Opening Metathesis Activity of Ruthenium-Based Olefin Metathesis Catalyst Coordinated with 1,3-Bis(2,6-Diisopropylphenyl)-4,5-Dihydroimidazoline.

Author

Imamoglu, Yavuz, Dragutan, Valerian, Karabulut, Solmaz, and Verpoort, Francis

Abstract

A 1,3-bis-(2,6-diisopropylphenyl)-4,5-dihydroimidazol-2-ylidene substituted ruthenium (Ru)-based complex (4) has been prepared starting from (PCy3)2(Cl)2Ru=CHPh (2). The catalytic performance of catalyst (4) is checked on ring-opening metathesis polymerization (ROMP) of the low strain monomer, cycloocta-1,5-diene (COD), and also compared with catalyst (2) and (3). [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF

25. Ruthenium-Vinylidene Complexes: An Efficient Class of Homogeneous Metathesis Catalysts.

Author

Imamoglu, Yavuz, Karabulut, Solmaz, Dragutan, Ileana, Verpoort, Francis, Dragutan, Valerian, and Drozdzak, Renata

Abstract

Several routes to access ruthenium (Ru)-vinylidene complexes are described, the majority of which employ alkynes and a Ru source as the starting materials. The successful application of Ru-vinylidenes as efficient pre-catalysts for the synthesis of carbocyclic and heterocyclic compounds by ring-closing metathesis (RCM) of αω, -dienes, and in the synthesis of polymers by ring-opening metathesis polymerization (ROMP) of cyclooctene, norbornene, 5-substituted norbornene, and dicyclopentadiene is fully illustrated. Relevant aspects concerning the activity and selectivity of this type of Ru complexes in metathesis reactions are highlighted. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF

26. Towards New Generations of Metathesis Metal-Carbene Pre-catalysts.

Author

Imamoglu, Yavuz, Karabulut, Solmaz, Allaert, Bart, Dieltiens, Nicolai, Stevens, Chris, Drozdzak, Renata, Dragutan, Ileana, Dragutan, Valerian, and Verpoort, Francis

Abstract

: A short general introduction combined with some historical milestones in the field of olefin metathesis is presented followed by an overview of recent representatives of metal carbene initiators. This paper attempts to relief the many superb contributions and overwhelming work invested in intelligent design and innovative synthesis in this area. Despites of recent advances there is still a great interest in the generation of new, better performing, and more environment friendly metathesis. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results