Nickel complexes are able to undergo reactions with organohalides by a variety of fundamental steps, which can be either one-electron or two-electron in nature. Two electron processes are typically so...

Suspendida la apertura del curso en la UPO tras impedir una protesta hablar al consejero de Universidad.

Corecipient of the 2000 Nobel Prize was a tireless advocate of children's science education

ALT: Shocked Cat While Woman Irons

La investigación de catedráticos de la Universidad de Sevilla alerta de la presencia masiva de contaminantes en especies destinadas al consumo humano en la zona en la que vierte Cobre Las Cruces, que ...

Luego de los despidos masivos, los trabajadores de la Comisión Nacional de Energía Atómica se encontraron con la sede central rodeada de gendarmes. Protestas en CABA y Bariloche.

ALT: Boy Math: Distracted Student in Classroom

The Lausanne-based publishing house Frontiers, founded by the neuroscientists Henry and Kamila Markram, has been added to the Beall’s List of potential, possible, or probable predatory scholarly op…

BRUSSELS—In an effort to ensure that rejected applicants have undergone “sufficient personal and scientific growth” before resubmitting, the European Research Council announced Tuesday that…

Puede parecer, por el título, que este artículo trata de un asunto muy particular que solo afecta a un pequeño grupo de personas: los científicos. Nada más

ALT: Britney Spears: Oops You Did It Again

El ministerio de Diana Morant asegura que ultima los trabajos para realizar una reasignación de medio centenar de las plazas no cubiertas de las ayudas predoctorales

Des directeurs de laboratoires du CNRS, fleuron de la recherche en France, craignent de devoir interrompre certains projets scientifiques après une nouvelle réduction de leurs moyens, demandée par le ...

A series of 2,6-bis(3-mesitylimidazol-2-ylidene)pyridine (MesCNC) calcium dihalide (X = Cl, Br) complexes have been synthesized by direct treatment of the corresponding imidazolium salt precursor with calcium bis(trimethylsilyl(amide)) (Ca[N(SiMe3)2]2(thf)2), in contrast to previously reported methods. Structural evaluation showed that generating the analogous ligand with substitutions at the 3- and 5-positions of the central pyridine moiety resulted in the 3,5-dimethyl-2,6-bis(3-mesitylimidazol-2-ylidene)pyridine (3,5-Me2-MesCNC)CaI2 complex, which shows puckering of the ligand that has not been observed previously. Attempts to characterize these complexes by solution-state NMR spectroscopy have been previously elusive; herein, we report full characterization of a suite of pyridinebis(carbene) calcium complexes along with single crystal X-ray diffraction studies.