[BMIm]2[Mn(CO)3(GeI3)3]: Carbonyl Compound with an {MnGe3} Cluster Unit

2020 ◽  
Vol 59 (17) ◽  
pp. 12895-12902
Author(s):  
Silke Wolf ◽  
Shangxin Wei ◽  
Wim Klopper ◽  
Stefanie Dehnen ◽  
Claus Feldmann
RSC Advances ◽  
2021 ◽  
Vol 11 (16) ◽  
pp. 9098-9111
Author(s):  
Salahudeen Shamna ◽  
C. M. A. Afsina ◽  
Rose Mary Philip ◽  
Gopinathan Anilkumar

Amino alkylation of an acidic α-proton of a carbonyl by formaldehyde and a primary/secondary amine or ammonia, affording a β-amino-carbonyl compound also known as a Mannich base is a valuable reaction. We focus on recent advances in Zn catalysed Mannich reactions.


2020 ◽  
Vol 11 (43) ◽  
pp. 11763-11776
Author(s):  
Erika Amemiya ◽  
Aaron Loo ◽  
Daniel G. Shlian ◽  
Gerard Parkin

The previously reported novel cadmium carbonyl compound, [Cd(CO)3(C6H3Cl)]4, is better formulated as the rhenium compound, [Re(CO)3(C4N2H3S)]4.


1959 ◽  
Vol 81 (3) ◽  
pp. 752-753 ◽  
Author(s):  
James G. Murray

2004 ◽  
Vol 43 (11) ◽  
pp. 3332-3334 ◽  
Author(s):  
Victor Ovcharenko ◽  
Elena Fursova ◽  
Galina Romanenko ◽  
Vladimir Ikorskii
Keyword(s):  

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2662
Author(s):  
Nathalie Audebrand ◽  
Antoine Demont ◽  
Racha El Osta ◽  
Yuri V. Mironov ◽  
Nikolay G. Naumov ◽  
...  

The reaction of the K4[{Re6Si8}(OH)a6]·8H2O rhenium cluster salt with pyrazine (Pz) in aqueous solutions of alkaline or alkaline earth salts at 4 °C or at room temperature leads to apical ligand exchange and to the formation of five new compounds: [trans-{Re6Si8}(Pz)a2(OH)a2(H2O)a2] (1), [cis-{Re6Si8}(Pz)a2(OH)a2(H2O)a2] (2), (NO3)[cis-{Re6Si8}(Pz)a2(OH)a(H2O)a3](Pz)·3H2O (3), [Mg(H2O)6]0.5[cis-{Re6Si8}(Pz)a2(OH)a3(H2O)a]·8.5H2O (4), and K[cis-{Re6Si8}(Pz)a2(OH)a3(H2O)a]·8H2O (5). Their crystal structures are built up from trans- or cis-[{Re6Si8}(Pz)a2(OH)a4−x(H2O)ax]x−2 cluster units. The cohesions of the 3D supramolecular frameworks are based on stacking and H bonding, as well as on H3O2−bridges in the cases of (1), (2), (4), and (5) compounds, while (3) is built from stacking and H bonding only. This evidences that the nature of the synthons governing the cluster unit assembly is dependent on the hydration rate of the unit.


Synlett ◽  
2018 ◽  
Vol 29 (18) ◽  
pp. 2422-2426
Author(s):  
Bing Yi ◽  
Jiannan Xiang ◽  
Niannian Yi ◽  
Yi Xiong ◽  
Qingjun Huang ◽  
...  

A protocol for the copper-catalyzed oxidative self-coupling of α-amino carbonyl compounds has been developed for the synthesis of tetrasubstituted 1,4-enediones (Z-isomers) in moderate to good yields through the cleavage of four sp3C–H bonds and the simultaneous formation of one C=C double bond in the α-amino carbonyl compound. The strategy has the advantages of using readily available starting ­materials and of high stereoselectivity.


2021 ◽  
Vol 04 (02) ◽  
pp. 24-28
Author(s):  
Svirko Svitlana Svirko Svitlana

The article considers the issue of state security in the context of the objective attention of public administration. Based on the semantics of the concepts of "state" and "security", elaboration of a set of approaches to the interpretation of these definitions, analysis of options for different authors in favor of certain approaches to the interpretation of the concept of "state security" formed and motivated the author's vision of this term such a state of protection of various vector interests of the state and its simple cluster unit - the citizen - which ensures the effective functioning of all spheres, industries, institutional sectors (including their units), mechanisms in general and the implementation of the functions and powers of the state institution in particular for their further development in a changing environment, external and internal threats. The proposed in some way unification approach allows emphasizing the content of the concept, as a logically related set of relevant objects, in the context of the prevailing philosophical nature of the phenomenon of "security", leaving open the "scope" of the concept for further more detailed detailing of its characteristics in the segment. theoretical foundations of the science of public administration in the field of public security concerning its elemental components. This approach provides a focus on the most general object-subject features of the concept while avoiding minor characteristics. Keywords: state, society, public administration, national security, state security, threats.


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