Sławomir Janusz Grabowski was born in Warsaw, Poland (1956). He received master´s degree (1981) and Ph.D. (1986) at the University of Warsaw, D.Sc. (1998) at the Technical University of Łódź, Poland. From 1986 he worked at the University of Białystok in Poland and from 2002 at the University of Łódź (full professor from 2005).He was temporarily employed at various universities; E.T.H., Zürich, Switzerland (1987), University of Uppsala, Sweden (1988), University of Grenoble, France (1992), Jackson State University, USA (in 2003-2008), Fukuoka University, Japan (2009, awarded by Japan Society for the Promotion of Science), Université Pierre et Marie Curie, Paris, France, invited professor (June 2013).Currently he is employed as the Ikerbasque Research Professor at the University of the Basque Country, Spain (from 2009). Dr. Grabowski has authored or co-authored about 200 papers, 14 book chapters and he has edited two books on hydrogen bond. His work encompasses the analysis of hydrogen bond, and other interactions. He is a member of the Editorial Boards of MDPI journal Crystals (editor-in-chief of the section Crystal Engineering), Journal of Physical Organic Chemistry and Computational and Theoretical Chemistry; he is a member of the Advisory Board of Sci (MDPI journal) and he was a guest editor of special issues of Structural Chemistry, Computational and Theoretical Chemistry and Crystals; numerous plenary, keynote and invited lectures at the international conferences of physical chemistry and theoretical chemistry.

• Hydrogen bond – definition, criteria of existence and its various types;Counterparts of the hydrogen bond;Theoretical approaches;Experimental methods and techniques;Mechanisms of the hydrogen bond formation, red-shifting and blue-shifting hydrogen bonds;From weak interactions to covalent bonds: weak, moderate and strong hydrogen bonds;Intramolecular hydrogen bonds;At the border of hydrogen bond definition – interactions possessing some of its characteristics;Perspectives and conclusions.

Sławomir Janusz Grabowski was born in Warsaw, Poland (1956). He received master´s degree (1981) and Ph.D. (1986) at the University of Warsaw, D.Sc. (1998) at the Technical University of Łódź, Poland. From 1986 he worked at the University of Białystok in Poland and from 2002 at the University of Łódź (full professor from 2005).He was temporarily employed at various universities; E.T.H., Zürich, Switzerland (1987), University of Uppsala, Sweden (1988), University of Grenoble, France (1992), Jackson State University, USA (in 2003-2008), Fukuoka University, Japan (2009, awarded by Japan Society for the Promotion of Science), Université Pierre et Marie Curie, Paris, France, invited professor (June 2013).Currently he is employed as the Ikerbasque Research Professor at the University of the Basque Country, Spain (from 2009). Dr. Grabowski has authored or co-authored about 200 papers, 14 book chapters and he has edited two books on hydrogen bond. His work encompasses the analysis of hydrogen bond, and other interactions. He is a member of the Editorial Boards of MDPI journal Crystals (editor-in-chief of the section Crystal Engineering), Journal of Physical Organic Chemistry and Computational and Theoretical Chemistry; he is a member of the Advisory Board of Sci (MDPI journal) and he was a guest editor of special issues of Structural Chemistry, Computational and Theoretical Chemistry and Crystals; numerous plenary, keynote and invited lectures at the international conferences of physical chemistry and theoretical chemistry.

• Hydrogen bond – definition, criteria of existence and its various types;Counterparts of the hydrogen bond;Theoretical approaches;Experimental methods and techniques;Mechanisms of the hydrogen bond formation, red-shifting and blue-shifting hydrogen bonds;From weak interactions to covalent bonds: weak, moderate and strong hydrogen bonds;Intramolecular hydrogen bonds;At the border of hydrogen bond definition – interactions possessing some of its characteristics;Perspectives and conclusions.

Sławomir Janusz Grabowski was born in Warsaw, Poland (1956). He received master´s degree (1981) and Ph.D. (1986) at the University of Warsaw, D.Sc. (1998) at the Technical University of Łódź, Poland. From 1986 he worked at the University of Białystok in Poland and from 2002 at the University of Łódź (full professor from 2005).He was temporarily employed at various universities; E.T.H., Zürich, Switzerland (1987), University of Uppsala, Sweden (1988), University of Grenoble, France (1992), Jackson State University, USA (in 2003-2008), Fukuoka University, Japan (2009, awarded by Japan Society for the Promotion of Science), Université Pierre et Marie Curie, Paris, France, invited professor (June 2013).Currently he is employed as the Ikerbasque Research Professor at the University of the Basque Country, Spain (from 2009). Dr. Grabowski has authored or co-authored about 200 papers, 14 book chapters and he has edited two books on hydrogen bond. His work encompasses the analysis of hydrogen bond, and other interactions. He is a member of the Editorial Boards of MDPI journal Crystals (editor-in-chief of the section Crystal Engineering), Journal of Physical Organic Chemistry and Computational and Theoretical Chemistry; he is a member of the Advisory Board of Sci (MDPI journal) and he was a guest editor of special issues of Structural Chemistry, Computational and Theoretical Chemistry and Crystals; numerous plenary, keynote and invited lectures at the international conferences of physical chemistry and theoretical chemistry.

• Hydrogen bond – definition, criteria of existence and its various types;Counterparts of the hydrogen bond;Theoretical approaches;Experimental methods and techniques;Mechanisms of the hydrogen bond formation, red-shifting and blue-shifting hydrogen bonds;From weak interactions to covalent bonds: weak, moderate and strong hydrogen bonds;Intramolecular hydrogen bonds;At the border of hydrogen bond definition – interactions possessing some of its characteristics;Perspectives and conclusions.