Syntheses, Reactivity and DFT Studies of Group 2 and Group 12 Metal Complexes of Tris(pyrazolyl)methanides Featuring “Free” Pyramidal Carbanions

2008 ◽  
Vol 14 (19) ◽  
pp. 5918-5934 ◽  
Author(s):  
Helen R. Bigmore ◽  
Jens Meyer ◽  
Ivo Krummenacher ◽  
Heinz Rüegger ◽  
Eric Clot ◽  
...  
Keyword(s):  
Group 12 ◽  
Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1739
Author(s):  
Artyom A. Astafiev ◽  
Olga V. Repina ◽  
Boris S. Tupertsev ◽  
Alexey A. Nazarov ◽  
Maria R. Gonchar ◽  
...  

Arylazoimidazoles are important dyes which were intensively studied in the past. In contrast, triarylazoimidazoles (derivatives which carry aryl substituents at the imidazole core) received almost no attention in the scientific literature. Here, we report a new family of simple and easily accessible triarylazoimidazole-group 12 metal complexes, which feature highly efficient photo-luminescence emission (Φ up to  0.44). Novel compounds exhibit bright red emission in solution, which could be excited with a visible light.


2021 ◽  
Author(s):  
Jacob S. McMullen ◽  
Alison J. Edwards ◽  
Jamie Hicks

A series of neutral magnesium and calcium complexes bearing an extremely bulky diamido ligand have been synthesised and crystallographically characterised. A number of these complexes feaure rare group 2 metal···aromatic...


2014 ◽  
Vol 53 (12) ◽  
pp. 5887-5889 ◽  
Author(s):  
Neeru ◽  
Dolly Yadav ◽  
Geeta Tiwari ◽  
Jai Deo Singh ◽  
Raymond J. Butcher

Author(s):  
Jane Park ◽  
Danielle Dugat ◽  
Mark Rochat ◽  
Hall Griffin ◽  
Mark E. Payton

Abstract Objective The aim of this study was to evaluate the effect of bidirectional insertion on axial pullout strength of tapered run out (TRO), traditional negative profile (TNP) and positive profile (PP) pins. Study Design Cadaveric adult canine tibiae were harvested. Tapered run out pins (Group 1) were inserted unidirectionally to the desired position; bidirectionally past the desired position, then withdrawn to the desired position (Group 2); and bidirectionally as described for Group 2, repeated twice (Group 3). Traditional negative profile pins (Group 4–6) and PP pins (Group 9–11) were placed in the same manner. Tapered run out (Group 7), TNP (Group 8) and PP pins (Group 12) were driven unidirectionally such that the shaft of the pin violated the cis-cortex. A servohydraulic testing machine extracted the pins and measured axial peak pullout strength. Results Positive profile pins had significantly greater pullout strength than TRO and TNP pins placed unidirectionally to the desired position. Method of insertion had no effect on peak pullout strength of TNP pins. TRO and PP pins inserted unidirectionally to the desired position had significantly greater peak pullout strengths than insertion bidirectionally or if the shaft of the pin violated the cis-cortex. Conclusion The authors recommend that pins used for external skeletal fixation should be placed unidirectionally to the desired position with fluoroscopic guidance, intra-operative depth gauge measurements or measurements from preoperative radiographs. Repositioning pins results in loss of peak pullout strength with TRO and PP pins.


2010 ◽  
pp. 168-181
Author(s):  
Thomas H. Bullock ◽  
Rebecca L. Melen ◽  
Dominic S. Wright
Keyword(s):  
Group 12 ◽  

2007 ◽  
pp. 70-84 ◽  
Author(s):  
Dominic S. Wright
Keyword(s):  
Group 12 ◽  

Polyhedron ◽  
2020 ◽  
Vol 182 ◽  
pp. 114511
Author(s):  
Andrea Dobri ◽  
Alexandru Covaci ◽  
Ancuța Covaci ◽  
Anca Silvestru

2018 ◽  
Vol 1166 ◽  
pp. 110-120 ◽  
Author(s):  
Sajjad Hussain Sumrra ◽  
Aftab Hussain Atif ◽  
Muhammad Naveed Zafar ◽  
Muhammad Khalid ◽  
Muhammad Nawaz Tahir ◽  
...  

RSC Advances ◽  
2019 ◽  
Vol 9 (44) ◽  
pp. 25382-25404 ◽  
Author(s):  
Zahra Hosseini-Hashemi ◽  
Masoud Mirzaei ◽  
Ameneh Jafari ◽  
Peyman Hosseinpour ◽  
Mohammad Yousefi ◽  
...  

A series of new coordination complexes bearing H2pydco, an O-donor ligand, were synthesized and compared to corresponding complexes with H2pydc. The molecular and supramolecular structures were investigated using crystallography, solution phase and high level DFT studies.


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