Group 1s and 2s Metals

Hanusa, Timothy P.

doi:10.1016/b0-08-043748-6/02024-7

Cited by 16 publications

(9 citation statements)

References 724 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cesium shows a less defined coordination by additional π-coordinative interactions, which is also typical for the heavier alkali metals. [39] Also typical for the alkali metals is that the crystal water content in the isolated products decreased in the direction Li Ǟ Cs, which can be attributed to the fact that ionic binding becomes more and more relevant in the same direction. Regarding the coordination of the Me 2 Violigand, κ 2 O,OЈ-and κ 2 N,OЈ-chelating modes, which have been frequently seen also with other metals, turned out to be the most favored coordination patterns.…”

Section: Discussionmentioning

confidence: 95%

Synthesis and Structural Investigation of a Complete Series of Brightly Colored Alkali Metal 1,3‐Dimethylviolurates

Lorenz

Liebing

Hilfert

et al. 2020

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

A complete series of alkali metal 1,3‐dimethylviolurates M(Me2Vio) was synthesized and fully characterized. The title compounds M(Me2Vio)(H2O) [M = Li (3), Na (4)], K(Me2Vio)(H2O)0.5 (5) and M(Me2Vio) [M = Rb (6), Cs (7)] were prepared by neutralizing 1,3‐dimethylvioluric acid (= HMe2Vio; 2) with 1 equiv. of the corresponding metal hydroxides MOH. The resulting salts exhibit striking colors ranging from orange‐red (3) through purple (4, 5) to bright blue (6, 7). In contrast to the monohydrate 4, the classical synthesis of sodium 1,3‐dimethylviolurate from 1,3‐dimethylbarbituric acid and NaNO2 afforded the purple trihydrate Na(Me2Vio)(H2O)3 (4a). All new compounds have been fully characterized by their IR and NMR (1H, 13C) spectra as well as elemental analyses. X‐ray crystal structure determination revealed that the title compounds exist as one‐ (Li, Na), two‐ (K, Cs), or three‐dimensional (Rb) coordination polymers in the solid state.

show abstract

Section: Discussionmentioning

confidence: 95%

Synthesis and Structural Investigation of a Complete Series of Brightly Colored Alkali Metal 1,3‐Dimethylviolurates

Lorenz

Liebing

Hilfert

et al. 2020

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

show abstract

“…The substituent effect seems to be actually more pronounced than the impact of metal‐ion radius and coordinated solvent, as very similar M 2 (DAD) core structures have been observed for different alkali metals and donor solvents. Therefore, the increased affinity to π‐coordinating ligands which is typical for the heavier alkali metals K, Rb and Cs was not apparent in the M 2 (DAD) core structures of the potassium derivatives 5 and 8 . However, additional intermolecular aryl‐π coordination is important for coordinative saturation of the metal centers in 8 .…”

Section: Discussionmentioning

confidence: 99%

The Manifold Structural Chemistry of Alkali Metal Enediamide Complexes

et al. 2019

View full text Add to dashboard Cite

New alkali metal (M = Li, Na, K) enediamide complexes derived from 1,4‐diaza‐1,3‐dienes (= DADs) have been synthesized and structurally characterized. The complexes were prepared by direct metalation of either 1,4‐bis(2,6‐diisopropylphenyl)‐1,4‐diaza‐1,3‐butadiene (1, = H2DADDipp) or 1,4‐bis(2,6‐diisopropylphenyl)‐2,3‐dimethyl‐1,4‐diaza‐1,3‐butadiene (2, = Me2DADDipp) with an excess of the respective alkali metals in donor solvents such as THF or DME. All new complexes were fully characterized by spectroscopic methods and X‐ray crystallography.

show abstract

“…As such, this interaction has received considerable attention, with several investigators noting that heavier alkaline earth metals have a preference for the formation of multiple M-Cp bonds over a single M-co-ligand bond. 24,27,88,110,111,136 The rationale for the preferential formation of several weaker secondary interactions over fewer, but stronger, primary interactions would be that the summation of the secondary interactions provides greater stabilization than a single metal-co-ligand interaction. As such, these are strongly metal-dependent, with the larger, heavier alkaline earth metals showing an apparent preference for M-Cp interactions.…”

Section: Studies Confirming the Significance Of M-cpmentioning

confidence: 99%

“…Over the last several years, the array of heavy organoalkaline earth metal compounds has multiplied, as summarized in several recent review articles. [24][25][26][27][28][29] In line with the focus of this article, a few of the recent contributions are chosen to illustrate aspects of synthetic methodology and secondary interactions. .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and stabilization—advances in organoalkaline earth metal chemistry

2010

View full text Add to dashboard Cite

The last decade has seen an impressive growth in alkaline earth metal chemistry, with applications ranging from synthetic organic and polymer chemistry to materials science. As a consequence, alkaline earth metal chemistry has made a leap from obscurity into the spotlight of modern organometallic chemistry. Much of this rapid development was made possible by the establishment of novel synthetic procedures that allowed facile access to the target compounds, as many conventional synthetic routes posed and continue to pose significant limitations. Novel approaches have allowed the preparation of a multitude of compounds, initiating progress not thought possible just five years ago. Examination of the new compounds delineates several factors responsible for their structure and function. Key elements in the coordination, aggregation behavior, and reactivity of these systems have been linked to secondary interactions, including M-Cpi, M-Npi, M-F, and M-H(agostic) interactions. This feature article will provide a very brief overview of established synthetic procedures, including a brief discussion on specific shortcomings. This will be followed by a detailed presentation of novel methodologies that are the core of the rapid development of alkaline earth metal chemistry. The second part of the article will be concerned with the analysis of various secondary interactions and their role in the further development of this rapidly emerging field of chemistry.

show abstract

Group 1s and 2s Metals

Cited by 16 publications

References 724 publications

Synthesis and Structural Investigation of a Complete Series of Brightly Colored Alkali Metal 1,3‐Dimethylviolurates

Synthesis and Structural Investigation of a Complete Series of Brightly Colored Alkali Metal 1,3‐Dimethylviolurates

The Manifold Structural Chemistry of Alkali Metal Enediamide Complexes

Synthesis and stabilization—advances in organoalkaline earth metal chemistry

Contact Info

Product

Resources

About