The main focus of research in the Group for Polycyclic Chemistry is exploration of diamondoids, naturally occurring cage hydrocarbons that have unique properties and are potential building blocks for advanced materials. These sp3-hybridized cyclic alkanes have the spatial arrangement of their carbon atoms comparable to a diamond crystal lattice and the smallest representative of diamondoid compounds is adamantane. Unlike bulk diamond, diamondoids can be selectively functionalized using various tools of synthetic organic chemistry. Consequently, a bottom-up design principle can be applied when developing new nanomaterials based on diamondoid cages.

In our group we combine experimental synthetic methods with computational tools in the design of new functionalized diamondoid derivatives, with a goal of applying the obtained scaffolds as novel advanced materials. Specifically, our research is focused on cage functionalization, preparation of bigger diamondoid systems linked with various spacers and introduction of function-oriented subunits on the cage framework. We consider the synergy of computational and preparative approaches to be crucial for understanding the processes underlying the behavior and properties of nanomaterials and therefore combine them when constructing new cage scaffolds.

Group members

Dr. Marina Šekutor

Group leader

Dr. Marija Alešković

Researcher

Dr. Tatjana Šumanovac

Researcher

Jasna Alić, mag. ing. cheming.

PhD student

Nataša Burić, dipl. ing.

PhD student

Projects

2018 - 2023 - "Diamondoid scaffolds containing heteroatoms – preparation and application in development of advanced materials (DiamMat)"/ Installation Research Project / Croatian Science Foundation / Principal investigator: Dr. Marina Šekutor

2018 - 2019 - "Self-assembly of bulky diamondoid molecules on metal surfaces"/ Humboldt Return Fellowship, Alexander-von-Humboldt Foundation / Principal investigator: Dr. Marina Šekutor

2018 - 2019 - "Application of Diamondoid Ammonium Salts in Supramolecular Architectures"/ Bilateral Project, Ministry of Science and Education of the Republic of Croatia (MZO) and German Academic Exchange Service (DAAD) / Principal investigators: Dr. Marina Šekutor and Prof. Dr. Peter R. Schreiner

2015 - 2016 - "Diamondoid Amines – New Ligands in Supramolecular Systems" / Croatian Academy of Sciences and Arts / Principal investigator: Dr. Marina Šekutor

Publications

8. H.-Y. Gao, M. Šekutor, L. Liu, A. Timmer, H. Schreyer, H. Mönig, S. Amirjalayer, N. A. Fokina, A. Studer, P. R. Schreiner, H. Fuchs, Diamantane Suspended Single Copper Atoms, J. Am. Chem. Soc. 2019, 141, 315–322.

7. D. Ebeling,1 M. Šekutor,1 M. Stiefermann, J. Tschakert, J. E. P. Dahl, R. M. K. Carlson, A. Schirmeisen, P. R. Schreiner, Assigning the absolute configuration of single aliphatic molecules by visual inspection, Nat. Commun. 2018, 9, 2420.

6. D. Ebeling,1 M. Šekutor,1 M. Stiefermann, J. Tschakert, J. E. P. Dahl, R. M. K. Carlson, A. Schirmeisen, P. R. Schreiner, London Dispersion Directs On-Surface Self-Assembly of [121]Tetramantane Molecules, ACS Nano 2017, 11, 9459–9466.

5. D. Sigwalt, M. Šekutor, L. Cao, P. Y. Zavalij, J. Hostaš, H. Ajani, P. Hobza, K. Mlinarić-Majerski, R. Glaser, L. Isaacs, Unraveling the Structure–Affinity Relationship between Cucurbit[n]urils (n = 7, 8) and Cationic Diamondoids, J. Am. Chem. Soc. 2017, 139, 3249–3258.

4. J. Hostaš, D. Sigwalt, M. Šekutor, H. Ajani, M. Dubecký, J. Řezáč, P. Y. Zavalij, L. Cao, C. Wohlschlager, K. Mlinarić-Majerski, L. Isaacs, R. Glaser, P. Hobza, A Nexus between Theory and Experiment: Non-empirical Quantum Mechanical Computational Methodology Applied to Cucurbit[n]uril•Guest Binding Interactions, Chem. Eur. J. 2016, 22, 17226‒17238.

3. O. Moncea, M. A. Gunawan, D. Poinsot, H. Cattey, J. Becker, R. I. Yurchenko, E. D. Butova, H. Hausmann, M. Šekutor, A. A. Fokin, J.-C. Hierso, P. R. Schreiner, Defying Stereotypes with Nanodiamonds: Stable Primary Diamondoid Phosphines, J. Org. Chem. 2016, 81, 8759‒8769.

2. M. Šekutor, K. Molčanov, L. Cao, L. Isaacs, R. Glaser, K. Mlinarić-Majerski, Design, Synthesis, and X-ray Structural Analyses of Diamantane Diammonium Salts: Guests for Cucurbit[n]uril (CB[n]) Hosts, Eur. J. Org. Chem. 2014, 2533‒2542.

1. L. Cao, M. Šekutor, P. Y. Zavalij, K. Mlinarić-Majerski, R. Glaser, L. Isaacs, Cucurbit[7]uril•Guest Pair with an Attomolar Dissociation Constant, Angew. Chem., Int. Ed. 2014, 53, 988‒993; Angew. Chem. 2014, 126, 1006‒1011.

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