Results 151 to 160 of about 303,895 (348)

Stabilization of the Benzene Radical Trianion in an Inverse‐Sandwich Yttrium Complex

Angewandte Chemie, EarlyView.
A new type of benzene anion state is born: The unprecedented benzene radical trianion embedded in an inverse‐sandwich yttrium complex was synthesized by a one‐electron chemical reduction of its benzene dianion precursor using potassium graphite in the presence of [2.2.2]‐cryptand.
Weiqing Mao, Saroshan Deshapriya, Shenglai Yao, Christian Lorent, Matthias Driess, Selvan Demir   +5 more
wiley   +2 more sources

Mapping the Distribution of High-Value Broadleaf Tree Crowns through Unmanned Aerial Vehicle Image Analysis Using Deep Learning [PDF]

Nyo Me Htun, Toshiaki Owari, Satoshi Tsuyuki, Takuya Hiroshima   +3 more
openalex   +1 more source

Template‐Controlled Mechanochemical Dissociation of a Rotaxane

Angewandte Chemie, EarlyView.
The presence or absence of the Pd template used in rotaxane formation selectively leads to two different mechanochemical dissociation pathways. The Pd maintains a smaller cavity size that favors dissociation by unstoppering. Removal of the Pd template atoms increases the size and flexibility of the macrocycle, which allows for disassembly by ...
James Ormson, Tomás Nicolás‐García, Guillaume De Bo   +2 more
wiley   +2 more sources

Evaluation of Dental Crowns Made in the School of Dentistry of Qom University of Medical Sciences, 2018 (Iran)

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2019
Background and Objectives: One of the most commonly used restorations for teeth with severe crown destruction is restoration with fixed prosthesis.
Mahdieh Jamshidian, Abozar Esmaeeli Sari, Nazila Najjari Dizaji, Zahra Jafary Nodoushan, Saeed Mminaeian   +4 more
doaj  

The Crystal Crown [PDF]

Mayo Clinic Proceedings, 2019
Hasan Ahmad Hasan Albitar, Delamo I. Bekele   +1 more
openaire   +2 more sources

Center of resistance assessment of upper lateral incisors with different dentoalveolar bone height and crown–root ratio: A finite element method study

, 2023
Shivani Vaishy, Shruti S. Biyani, Vinit D. Swami, Vasanthi V. Swami, Veera Bhosale   +4 more
openalex   +1 more source

Activation of Cyanate Anions by Phosphine Radical Cations Enables Formal Hydrocarbamoylation of Alkenes

Angewandte Chemie, EarlyView.
A photocatalytic formal hydrocarbamoylation reaction that employs a cyanate anion as the C1 source and provides N‐acyl iminophosphorane products from activated alkenes is described. Mechanistic investigations suggest generation of a phosphoranyl radical by addition of the cyanate anion to a phosphine radical cation, which enables the delivery of the ...
Petra Vojáčková, Armido Studer
wiley   +2 more sources

Closing a gap in tropical forest biomass estimation: accounting for crown mass variation in pantropical allometries

, 2015
Pierre Ploton, Nicolas Barbier, Stéphane Momo Takoudjou, Maxime Réjou‐Méchain, Faustin Boyemba Bosela, Georges Chuyong, Gilles Dauby, Vincent Droissart, Adeline Fayolle, Rosa C. Goodman, Matieu Henry, Narcisse Guy Kamdem, John Katembo Mukirania, David Kenfack, Moses B. Libalah, Alfred Ngomanda, Vivien Rossi, Bonaventure Sonké, Nicolas Texier, Thomas Deffieux, Donatien Zébazé, Pierre Couteron, Uta Berger, Raphaël Pélissier   +23 more
openalex   +1 more source

SURGICAL EXPOSURE OF CLINICAL CROWN IN THE ESTHETIC ZONE-MINIMAL INVASIVE TECHNIQUES.

, 2023
Eleni Mpentour, Eirini Papamanoli
openalex   +1 more source

Taming of Low‐Valent Arsenic Compounds and Transfer of Nascent As2 Facilitated by a Frustrated Lewis Pair

Angewandte Chemie, EarlyView.
A series of frustrated Lewis pair (FLP) stabilized arsenic compounds with formal oxidation numbers at As of +1, 0, and −1 are presented. A stable FLP‐chelated complex of As2 was prepared which undergoes the light‐induced release of nascent diarsenic, As2nasc, which reveals clean triple‐bond type reactivity with dienes and metal‐metal bonds under mild ...
Ludwig Zapf, Gábor Balázs, Manfred Scheer, Eric Rivard   +3 more
wiley   +2 more sources