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Publication Year: 2022 Subject: Chemistry

21 to 29 of 29 Results

Chirale polyzyklische aromatische Kohlenwasserstoffe mit Affensattel-Topologie [Data] Dec 5, 2022 - AK Mastalerz- PhD related Material Kirschbaum, Tobias, 2022, "Chirale polyzyklische aromatische Kohlenwasserstoffe mit Affensattel-Topologie [Data]", https://doi.org/10.11588/data/SHVINO, heiDATA, V1 In this thesis, the first chiral polycyclic aromatic hydrocarbon (PAH) with a monkey saddle topology is presented. Starting from a truxene building block that is readily preparatively accessible, the monkey saddle PAH could easily be obtained in three steps. By using additional f...
Bond dissociation energies of X−H bonds in proteins [data] Feb 14, 2023 - HITS MBM Riedmiller, Kai; Treyde, Wojtek; Gräter, Frauke, 2022, "Bond dissociation energies of X−H bonds in proteins [data]", https://doi.org/10.11588/data/AA3UAQ, heiDATA, V2 Knowledge of reliable X−H bond dissociation energies (X = C, N, O, S) for amino acids in proteins is key for studying the radical chemistry of proteins. X−H bond dissociation energies of model dipeptides were computed using the isodesmic reaction method at the BMK/6-31+G(2df,p) a...
Benzo-Fused Perylene Oligomers with up to 13 Linearly Annulated Rings [Data] Jan 20, 2022 - Institute of Organic Chemistry - AK Mastalerz Yang, Xuan; Rominger, Frank; Mastalerz, Michael, 2022, "Benzo-Fused Perylene Oligomers with up to 13 Linearly Annulated Rings [Data]", https://doi.org/10.11588/data/2TX0VD, heiDATA, V1 The longer acenes with more than six linearly fused six-membered rings are still fascinating chemists and physicists because of their unique photophysical properties and their high potential for organic electronics applications. Unfortunately, with increasing size (seven and more...
A Triptycene-Based Enantiopure Bis(Diazadibenzoanthracene) by a Chirality-Assisted Synthesis Approach [Data] Jan 19, 2022 - Institute of Organic Chemistry - AK Mastalerz Wang, Xubin; Kohl, Bernd; Rominger, Frank; Elbert, Sven Michael; Mastalerz, Michael, 2022, "A Triptycene-Based Enantiopure Bis(Diazadibenzoanthracene) by a Chirality-Assisted Synthesis Approach [Data]", https://doi.org/10.11588/data/46LINE, heiDATA, V1 By applying a chirality-assisted synthesis (CAS)approach enantiopure diaminodibromotriptycenes were converted to rigid chiral helical diazadibenzoanthracenes, which show besides pronounced Cotton effects in circular dichroism spectra higher photoluminescence quantum yields as com...
A Stable Hexaazaoctacene Cruciform σ-Dimer [Data] Jun 30, 2022 - Bunz Group Maier, Steffen, 2022, "A Stable Hexaazaoctacene Cruciform σ-Dimer [Data]", https://doi.org/10.11588/data/FABJEI, heiDATA, V1 Buchwald‐Hartwig coupling of a triisopropylsilyl (TIPS)‐ethynylated dibromo‐N,N'‐dihydrotetraazapentacene with 1,4‐bis(TIPS‐ethynyl)‐2,3‐diaminonaphthalene furnishes a dihydrohexaazaoctacene. Its oxidation with MnO2 results in a 7,7'‐bi(hexaazaoctacenyl). In addition to eight TIP...
A Series of Soluble Thieno-fused Coronene Nanoribbons of Precise Lengths [Data] Nov 23, 2022 - Institute of Organic Chemistry - AK Mastalerz Yang, Xuan; Elbert, Sven Michael; Rominger, Frank; Mastalerz, Michael, 2022, "A Series of Soluble Thieno-fused Coronene Nanoribbons of Precise Lengths [Data]", https://doi.org/10.11588/data/30AOAT, heiDATA, V1 Among graphene nanoribbons (GNRs), reports on coronene-based GNRs were very rare, despite the unique optoelectronic properties of coronene. Herein, the synthesis of a series of structurally precise and soluble thieno-fused coronene nanoribbons (CR-1 to CR-4) with up to four coron...
A Hexagonal Shape-Persistent Nanobelt of Elongated Rhombic Symmetry with Orthogonal π-Planes by a One-Pot Reaction [Data] Jan 19, 2022 - Institute of Organic Chemistry - AK Mastalerz Lauer, Jochen C.; Kohl, Bernd; Rominger, Frank; Mastalerz, Michael, 2022, "A Hexagonal Shape-Persistent Nanobelt of Elongated Rhombic Symmetry with Orthogonal π-Planes by a One-Pot Reaction [Data]", https://doi.org/10.11588/data/EBY4AN, heiDATA, V1 Triptycenes with their predefined D3h-symmetry are excellent molecular building blocks to construct shape-persistent nanobelts having π-orbitals orthogonal to the ring plane. However, up to now, there are only a very few examples of fused and rigid iptycene nanobelts synthesized...
A Facile Approach for 4D Microprinting of Multi-Photoresponsive Actuators [data] Nov 2, 2022 - Blasco Group Hsu, Li-Yun; Mainik, Philipp; Münchinger, Alexander; Lindenthal, Sebastian; Spratte, Tobias; Welle, Alexander; Zaumseil, Jana; Selhuber-Unkel, Christine; Wegener, Martin; Blasco, Eva, 2022, "A Facile Approach for 4D Microprinting of Multi-Photoresponsive Actuators [data]", https://doi.org/10.11588/data/MR5H4A, heiDATA, V1 For microscale 4D photoresponsive actuators, light is crucial in two ways. First, the underlying additive manufacturing techniques rely on photopolymerization processes triggered by the absorption of light. Second, the absorption of light serves as the actuation stimulus. The two...
[2+3] Amide Cages by Oxidation of [2+3] Imine Cages - Revisiting Molecular Hosts for Efficient Nitrate Binding [Data] Dec 5, 2022 - Institute of Organic Chemistry - AK Mastalerz Lauer, Jochen C.; Bhat, Avinash S.; Barwig, Chantal; Rominger, Frank; Mastalerz, Michael, 2022, "[2+3] Amide Cages by Oxidation of [2+3] Imine Cages - Revisiting Molecular Hosts for Efficient Nitrate Binding [Data]", https://doi.org/10.11588/data/HWLKZT, heiDATA, V1 The pollution of groundwater with nitrate is a serious issue because nitrate can cause several diseases such as methemoglobinemia or cancer. Therefore, selective removal of nitrate by efficient binding to supramolecular hosts is highly desired. Here we describe how to make [2+3]...

Chirale polyzyklische aromatische Kohlenwasserstoffe mit Affensattel-Topologie [Data]

Dec 5, 2022 - AK Mastalerz- PhD related Material

Kirschbaum, Tobias, 2022, "Chirale polyzyklische aromatische Kohlenwasserstoffe mit Affensattel-Topologie [Data]", https://doi.org/10.11588/data/SHVINO, heiDATA, V1

In this thesis, the first chiral polycyclic aromatic hydrocarbon (PAH) with a monkey saddle topology is presented. Starting from a truxene building block that is readily preparatively accessible, the monkey saddle PAH could easily be obtained in three steps. By using additional f...

Bond dissociation energies of X−H bonds in proteins [data]

Feb 14, 2023 - HITS MBM

Riedmiller, Kai; Treyde, Wojtek; Gräter, Frauke, 2022, "Bond dissociation energies of X−H bonds in proteins [data]", https://doi.org/10.11588/data/AA3UAQ, heiDATA, V2

Knowledge of reliable X−H bond dissociation energies (X = C, N, O, S) for amino acids in proteins is key for studying the radical chemistry of proteins. X−H bond dissociation energies of model dipeptides were computed using the isodesmic reaction method at the BMK/6-31+G(2df,p) a...

Benzo-Fused Perylene Oligomers with up to 13 Linearly Annulated Rings [Data]

Jan 20, 2022 - Institute of Organic Chemistry - AK Mastalerz

Yang, Xuan; Rominger, Frank; Mastalerz, Michael, 2022, "Benzo-Fused Perylene Oligomers with up to 13 Linearly Annulated Rings [Data]", https://doi.org/10.11588/data/2TX0VD, heiDATA, V1

The longer acenes with more than six linearly fused six-membered rings are still fascinating chemists and physicists because of their unique photophysical properties and their high potential for organic electronics applications. Unfortunately, with increasing size (seven and more...

A Triptycene-Based Enantiopure Bis(Diazadibenzoanthracene) by a Chirality-Assisted Synthesis Approach [Data]

Jan 19, 2022 - Institute of Organic Chemistry - AK Mastalerz

Wang, Xubin; Kohl, Bernd; Rominger, Frank; Elbert, Sven Michael; Mastalerz, Michael, 2022, "A Triptycene-Based Enantiopure Bis(Diazadibenzoanthracene) by a Chirality-Assisted Synthesis Approach [Data]", https://doi.org/10.11588/data/46LINE, heiDATA, V1

By applying a chirality-assisted synthesis (CAS)approach enantiopure diaminodibromotriptycenes were converted to rigid chiral helical diazadibenzoanthracenes, which show besides pronounced Cotton effects in circular dichroism spectra higher photoluminescence quantum yields as com...

A Stable Hexaazaoctacene Cruciform σ-Dimer [Data]

Jun 30, 2022 - Bunz Group

Maier, Steffen, 2022, "A Stable Hexaazaoctacene Cruciform σ-Dimer [Data]", https://doi.org/10.11588/data/FABJEI, heiDATA, V1

Buchwald‐Hartwig coupling of a triisopropylsilyl (TIPS)‐ethynylated dibromo‐N,N'‐dihydrotetraazapentacene with 1,4‐bis(TIPS‐ethynyl)‐2,3‐diaminonaphthalene furnishes a dihydrohexaazaoctacene. Its oxidation with MnO2 results in a 7,7'‐bi(hexaazaoctacenyl). In addition to eight TIP...

A Series of Soluble Thieno-fused Coronene Nanoribbons of Precise Lengths [Data]

Nov 23, 2022 - Institute of Organic Chemistry - AK Mastalerz

Yang, Xuan; Elbert, Sven Michael; Rominger, Frank; Mastalerz, Michael, 2022, "A Series of Soluble Thieno-fused Coronene Nanoribbons of Precise Lengths [Data]", https://doi.org/10.11588/data/30AOAT, heiDATA, V1

Among graphene nanoribbons (GNRs), reports on coronene-based GNRs were very rare, despite the unique optoelectronic properties of coronene. Herein, the synthesis of a series of structurally precise and soluble thieno-fused coronene nanoribbons (CR-1 to CR-4) with up to four coron...

A Hexagonal Shape-Persistent Nanobelt of Elongated Rhombic Symmetry with Orthogonal π-Planes by a One-Pot Reaction [Data]

Jan 19, 2022 - Institute of Organic Chemistry - AK Mastalerz

Lauer, Jochen C.; Kohl, Bernd; Rominger, Frank; Mastalerz, Michael, 2022, "A Hexagonal Shape-Persistent Nanobelt of Elongated Rhombic Symmetry with Orthogonal π-Planes by a One-Pot Reaction [Data]", https://doi.org/10.11588/data/EBY4AN, heiDATA, V1

Triptycenes with their predefined D3h-symmetry are excellent molecular building blocks to construct shape-persistent nanobelts having π-orbitals orthogonal to the ring plane. However, up to now, there are only a very few examples of fused and rigid iptycene nanobelts synthesized...

A Facile Approach for 4D Microprinting of Multi-Photoresponsive Actuators [data]

Nov 2, 2022 - Blasco Group

Hsu, Li-Yun; Mainik, Philipp; Münchinger, Alexander; Lindenthal, Sebastian; Spratte, Tobias; Welle, Alexander; Zaumseil, Jana; Selhuber-Unkel, Christine; Wegener, Martin; Blasco, Eva, 2022, "A Facile Approach for 4D Microprinting of Multi-Photoresponsive Actuators [data]", https://doi.org/10.11588/data/MR5H4A, heiDATA, V1

For microscale 4D photoresponsive actuators, light is crucial in two ways. First, the underlying additive manufacturing techniques rely on photopolymerization processes triggered by the absorption of light. Second, the absorption of light serves as the actuation stimulus. The two...

[2+3] Amide Cages by Oxidation of [2+3] Imine Cages - Revisiting Molecular Hosts for Efficient Nitrate Binding [Data]

Dec 5, 2022 - Institute of Organic Chemistry - AK Mastalerz

Lauer, Jochen C.; Bhat, Avinash S.; Barwig, Chantal; Rominger, Frank; Mastalerz, Michael, 2022, "[2+3] Amide Cages by Oxidation of [2+3] Imine Cages - Revisiting Molecular Hosts for Efficient Nitrate Binding [Data]", https://doi.org/10.11588/data/HWLKZT, heiDATA, V1

The pollution of groundwater with nitrate is a serious issue because nitrate can cause several diseases such as methemoglobinemia or cancer. Therefore, selective removal of nitrate by efficient binding to supramolecular hosts is highly desired. Here we describe how to make [2+3]...

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