Stefan Naumann
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View article: Recent Advances in the Stereoselective Polymerization of Epoxides and Applications of Stereocontrolled Polyethers
Recent Advances in the Stereoselective Polymerization of Epoxides and Applications of Stereocontrolled Polyethers Open
The stereoselective polymerization of racemic epoxides represents an increasingly powerful route to materials with tailored properties. Progress in this field is closely connected to advanced catalyst design and a growing understanding of …
View article: Molecular determinants of solvent nanoseparation by nanoporous carbon materials
Molecular determinants of solvent nanoseparation by nanoporous carbon materials Open
The manifold tunable properties of nanoporous carbon materials, including high surface area, stability, conductivity, rich surface chemistry, and biocompatibility render them a perfect platform for energy applications, catalysis, nanosepar…
View article: Polymer-templated films of ordered mesoporous carbon: preparation, characterization and applications
Polymer-templated films of ordered mesoporous carbon: preparation, characterization and applications Open
A concise overview of soft-templated ordered mesoporous carbon films is provided, discussing the key morphology-specific aspects of their synthesis, characterization and applications.
View article: Asymmetric Rh Diene Catalysis under Confinement: Isoxazole Ring‐Contraction in Mesoporous Solids
Asymmetric Rh Diene Catalysis under Confinement: Isoxazole Ring‐Contraction in Mesoporous Solids Open
Covalent immobilization of chiral dienes in mesoporous solids for asymmetric heterogeneous catalysis is highly attractive. In order to study confinement effects in bimolecular vs monomolecular reactions, a series of pseudo‐ C 2 ‐symmetrica…
View article: A Systematic Study of Nonionic Di‐ and Multiborane Catalysts for the Oligomerization and Polymerization of Epoxides
A Systematic Study of Nonionic Di‐ and Multiborane Catalysts for the Oligomerization and Polymerization of Epoxides Open
Borane catalysis has emerged as a powerful technology in epoxide polymerization. Still, the structure‐activity correlations for these catalysts are not fully understood to date, especially regarding compounds with nonionic backbones. Thus,…
View article: Mesoionic N‐Heterocyclic Olefins as Initiators for the Lewis Pair Polymerization of Epoxides
Mesoionic N‐Heterocyclic Olefins as Initiators for the Lewis Pair Polymerization of Epoxides Open
Mesoionic N ‐heterocyclic olefins (mNHOs) have recently emerged as a novel class of highly nucleophilic and super‐basic σ‐donor compounds. Making use of these properties in synthetic polymer chemistry, it is shown that a combination of a s…
View article: Mynewhome.com.au : exploring new ways of delivering architecture : creating a design interface for sustainable and affordable houses
Mynewhome.com.au : exploring new ways of delivering architecture : creating a design interface for sustainable and affordable houses Open
The aim of this research project was to explore new ways of delivering architecture and the engagement of architects in everyday, affordable, sustainable housing in Australia.This dissertation speculates on the possibility of a design syst…
View article: Synthesis of Poly(propylene oxide)–Poly(<i>N,N′</i>-dimethylacrylamide) Diblock Copolymer Nanoparticles via Reverse Sequence Polymerization-Induced Self-Assembly in Aqueous Solution
Synthesis of Poly(propylene oxide)–Poly(<i>N,N′</i>-dimethylacrylamide) Diblock Copolymer Nanoparticles via Reverse Sequence Polymerization-Induced Self-Assembly in Aqueous Solution Open
Sterically-stabilized diblock copolymer nanoparticles comprising poly(propylene oxide) (PPO) cores are prepared via reverse sequence polymerization-induced self-assembly (PISA) in aqueous solution. N,N'-Dimethylacrylamide (DMAC) act…
View article: Revealing the Monomer Gradient of Polyether Copolymers Prepared Using <i>N</i>‐Heterocyclic Olefins: Metal‐Free Anionic versus Zwitterionic Lewis Pair Polymerization
Revealing the Monomer Gradient of Polyether Copolymers Prepared Using <i>N</i>‐Heterocyclic Olefins: Metal‐Free Anionic versus Zwitterionic Lewis Pair Polymerization Open
N ‐Heterocyclic olefin (NHO)‐based polymerization pathways for the copolymerization of ethylene oxide (EO) and propylene oxide (PO) are investigated in detail. Employing in situ 1 H NMR spectroscopy, both an organocatalytic, anionic polyme…
View article: Catalogue of the Lepidoptera of Iran*
Catalogue of the Lepidoptera of Iran* Open
Copyright: © Staatliches Museum für Naturkunde Stuttgart. The linked file is the published version of the article.
View article: CCDC 2168081: Experimental Crystal Structure Determination
CCDC 2168081: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Mitochondrial genomes of two wild silkmoths, Samia watsoni and Samia wangi (Lepidoptera: Saturniidae), and their phylogenetic implications
Mitochondrial genomes of two wild silkmoths, Samia watsoni and Samia wangi (Lepidoptera: Saturniidae), and their phylogenetic implications Open
The wild silkmoth genus Samia Hübner, 1819 (Saturniidae) contains a number of economically important species in industrial silk production. However, the interspecific relationships within the genus remain unclear. We sequence the mitogenom…
View article: Nontoxic <i>N</i>-Heterocyclic Olefin Catalyst Systems for Well-Defined Polymerization of Biocompatible Aliphatic Polycarbonates
Nontoxic <i>N</i>-Heterocyclic Olefin Catalyst Systems for Well-Defined Polymerization of Biocompatible Aliphatic Polycarbonates Open
Herein, N-heterocyclic olefins (NHOs) are utilized as catalysts for the ring-opening polymerization (ROP) of functional aliphatic carbonates. This emerging class of catalysts provides high reactivity and rapid conversion. Aiming for…
View article: Mitogenomic phylogenetics of the wild silkmoth genus Samia Hübner, 1819 (Lepidoptera: Saturniidae)
Mitogenomic phylogenetics of the wild silkmoth genus Samia Hübner, 1819 (Lepidoptera: Saturniidae) Open
The wild silkmoth genus Samia Hübner, 1819 (Saturniidae) contains a number of economically important species in industrial silk production. However, the interspecific relationships within the genus remain unclear. We sequence the mitogenom…
View article: Chiral diboranes as catalysts for the stereoselective organopolymerization of epoxides
Chiral diboranes as catalysts for the stereoselective organopolymerization of epoxides Open
Chiral diborane catalysts deliver well-defined isotactic-enriched polyether, whereby also polyester-type macroinitiators can be employed.
View article: Strategies for Pore-Diameter Control in Mesoporous Carbons Derived from Organic Self-Assembly Processes
Strategies for Pore-Diameter Control in Mesoporous Carbons Derived from Organic Self-Assembly Processes Open
Soft-templating techniques have greatly facilitated access to (ordered) mesoporous carbon materials. A key strength of these approaches is that the resulting material can be shaped by a multitude of parameters – rendering soft-templating i…
View article: Ordered Mesoporous Carbons via Self-Assembly of Tailored Block Copolyethers for Pore Size-Dependent Applications
Ordered Mesoporous Carbons via Self-Assembly of Tailored Block Copolyethers for Pore Size-Dependent Applications Open
Using an organocatalytic polymerization method for the preparation of well-defined, amphiphilic block copolyethers of the type PPOn/2-PEOm-PPOn/2 ("Reverse Pluronics", Mn up to 50 000 g/mol, ĐM = 1.01–1.08, >100 examples), it is demonstrat…
View article: Publication data for: "Proton Affinities of N-Heterocyclic Olefins and Their Implications for Organocatalyst Design", data from Kästner group
Publication data for: "Proton Affinities of N-Heterocyclic Olefins and Their Implications for Organocatalyst Design", data from Kästner group Open
All primary data files and processed data of the journal article from Kästner group. The input and output of each DFT calculation in one directory.
View article: Dual catalysis with an <scp><i>N</i>‐heterocyclic</scp> carbene and a Lewis acid: Thermally latent <scp>precatalyst</scp> for the polymerization of <scp>ε‐caprolactam</scp>
Dual catalysis with an <span><i>N</i>‐heterocyclic</span> carbene and a Lewis acid: Thermally latent <span>precatalyst</span> for the polymerization of <span>ε‐caprolactam</span> Open
So far, the earlier reported strong correlation between basicity of an N ‐heterocyclic carbene (NHC) and its reactivity in poly(ε‐caprolactam) (PA6) synthesis resulted in a substantial limitation of applicable carbenes. Here, to overcome t…
View article: Einblick: Polymere und Nachhaltigkeit
Einblick: Polymere und Nachhaltigkeit Open
Polymere und Materialien können zu nachhaltigen Wirtschaftskreisläufen beitragen – wenn sie auf Abfallprodukten basieren, sich vollständig rezyklieren lassen oder ohne Lösungsmittel und Auxiliare entstehen. Waldvogel und Mitarbeiter haben …
View article: Linked PDF of Table of Contents
Linked PDF of Table of Contents Open
Construction of C-C Bond via C-N and C-O CleavageOAc OAc FG OAc
View article: Controlled Synthesis of “Reverse Pluronic”‐Type Block Copolyethers with High Molar Masses for the Preparation of Hydrogels with Improved Mechanical Properties
Controlled Synthesis of “Reverse Pluronic”‐Type Block Copolyethers with High Molar Masses for the Preparation of Hydrogels with Improved Mechanical Properties Open
Hydrogels based on Pluronics (EO n/2 ‐PO m ‐EO n/2 , EO = ethylene oxide, PO = propylene oxide) have been frequently investigated, yet key limitations still remain, including a propensity for quick erosion and insufficient mechanical robus…
View article: A simplified approach for the metal-free polymerization of propylene oxide
A simplified approach for the metal-free polymerization of propylene oxide Open
Mild organobases and Et3B constitute an operationally simple, user-friendly catalyst setup for polymerizing propylene oxide.
View article: The Lewis Pair Polymerization of Lactones Using Metal Halides and N-Heterocyclic Olefins: Theoretical Insights
The Lewis Pair Polymerization of Lactones Using Metal Halides and N-Heterocyclic Olefins: Theoretical Insights Open
Lewis pair polymerization employing N-Heterocyclic olefins (NHOs) and simple metal halides as co-catalysts has emerged as a useful tool to polymerize diverse lactones. To elucidate some of the mechanistic aspects that remain unclear to dat…
View article: A global checklist of the Bombycoidea (Insecta: Lepidoptera)
A global checklist of the Bombycoidea (Insecta: Lepidoptera) Open
Bombycoidea is an ecologically diverse and speciose superfamily of Lepidoptera. The superfamily includes many model organisms, but the taxonomy and classification of the superfamily has remained largely in disarray. Here we present a globa…
View article: CCDC 1842215: Experimental Crystal Structure Determination
CCDC 1842215: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Highly Polarized Alkenes as Organocatalysts for the Polymerization of Lactones and Trimethylene Carbonate
Highly Polarized Alkenes as Organocatalysts for the Polymerization of Lactones and Trimethylene Carbonate Open
In this work, the activity of N-heterocyclic olefins (NHOs), a newly emerging class of organopolymerization catalyst, is investigated to affect the metal-free polymerization of lactones and trimethylene carbonate (TMC). A decisive structur…
View article: CCDC 1456763: Experimental Crystal Structure Determination
CCDC 1456763: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Application of imidazolinium salts and N-heterocyclic olefins for the synthesis of anionic and neutral tungsten imido alkylidene complexes
Application of imidazolinium salts and N-heterocyclic olefins for the synthesis of anionic and neutral tungsten imido alkylidene complexes Open
The convenient synthesis, structural characterization and catalytic properties in olefin metathesis of three anionic tungsten imido alkylidenes and one neutral, NHO-bearing tungsten imido alkylidene complex are presented.
View article: CCDC 1456764: Experimental Crystal Structure Determination
CCDC 1456764: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …