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تعداد نتایج: 32928  

Journal: :Physical chemistry chemical physics : PCCP 2012
Yannick Jeanvoine Pere Miró Fausto Martelli Christopher J Cramer Riccardo Spezia

Quantum chemical calculations were employed to elucidate the structural and bonding properties of La(III) and Lu(III) carbonates. These elements are found at the beginning and end of the lanthanoid series, respectively, and we investigate two possible metal-carbonate stoichiometries (tri- and tetracarbonates) considering all possible carbonate binding motifs, i.e., combinations of mono- and bid...

Journal: :Chemical communications 2008
Russell C Pratt Fredrik Nederberg Robert M Waymouth James L Hedrick

Cyclic carbonate monomers based on a single biocompatible scaffold allow for incorporation of a wide range of functional groups into macromolecules via ring-opening polymerization.

2011
Yao-Cheng Shi Huan-Ren Cheng Li-Min Yuan Qian-Kun Li

The fused bis-butterfly-shaped title compound, [Fe(4)(CS(4))(CO)(12)], possesses an orthothio-carbonate (CS(4) (4-)) ligand that acts as a bridge between two Fe(2)(CO)(6) units. A short intra-molecular S⋯S contact [2.6984 (8) and 2.6977 (8) Å] occurs in each S(2)Fe(2)(CO)(6) fragment.

2008
M. Fazli Mohammat Zurina Shaameri A. Sazali Hamzah Hoong-Kun Fun Suchada Chantrapromma

In the title compound, C(17)H(23)NO(5), the pyrrolidinone ring is in an envelope conformation. The tert-butyl carbonate and 4-methoxy-phenyl groups are arranged on the same side of the pyrrolidinone ring. The meth-oxy group is coplanar with the attached benzene ring. The mol-ecules are linked into chains along the b axis via C-H⋯O hydrogen bonds.

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