Friday, January 20, 2006

JACS article: INADEQUATE to map bonding in [Ce@C82]-

J. Am. Chem. Soc., ASAP Article 10.1021/ja055882m S0002-7863(05)05882-8
Web Release Date: January 20, 2006

Copyright © 2006 American Chemical Society

Analysis of Lanthanide-Induced NMR Shifts of the Ce@C82 Anion

Michio Yamada, Takatsugu Wakahara, Yongfu Lian, Takahiro Tsuchiya, Takeshi Akasaka,* Markus Waelchli, Naomi Mizorogi,Shigeru Nagase,* and Karl M. Kadish

Center for Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan, Bruker Biospin K. K., Tsukuba, Ibaraki 305-0051, Japan, Department of Theoretical Molecular Science, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan, and University of Houston, Houston, Texas 77204-5003


The mapping of bond connectivity in the carbon cage of [Ce@C82]- and full assignment of the NMR lines were successfully achieved by means of 2D INADEQUATE NMR measurement. Paramagnetic NMR analysis shows that the Ce atom in [Ce@C82]- is located at an off-centered position adjacent to a hexagonal ring along the C2 axis of the C2v-C82 cage.

1 comment:

Rob Schurko said...

Here is the listing, just in case the link disappears:

2004 Chemistry Journals Impact Factors
A selected list of the ISI 2003 and 2004 impact factors for several international journals of chemistry. The Journal Impact Factor is calculated by the Institute for Scientific Information in its annual Journal Citation report (which includes Journal Impact Factors 2004) as the number of citations in a given year (2004) to articles published in the two preceeding years (2002-2003) divided by the number of articles published in the two preceeding years (2002-2003).

Wiley-VCH Journals Journals

In 2004 there is an increased impact for Wiley-VCH chemistry and materials journals.

In the chemistry section, Advanced Synthesis & Catalysis rises to 4.482 (2003: 3.783).

For comparison: J. Am. Chem. Soc.: 6.903, Chem. Commun. 3.997,
J. Chem. Phys. B 3.834, Phys. Chem. Chem. Phys. 2.076,
J. Biol. Chem. 6.335, Biol. Chem. 3.598.

On the materials side, the impact factors of Advanced Materials, Advanced Functional Materials, and Chemical Vapor Deposition have also climbed significantly: 8.079 (2003: 7.305), 5.679 (2003: 4.798), and 2.209 (2003: 2.071).

For comparison: Nat. Mater. 13.5, Chem. Mater. 4.103, J. Mater. Chem. 2.721.

The 2004 impact factor of Angewandte Chemie is 9.161 (up from 8.427 in 2003—the highest ever), Chemistry—A European Journal celebrates not just its 10th anniversary, but also an increase from 4.353 to 4.517. Their sister journals ChemPhysChem and ChemBioChem enjoy results of 3.596 (2003: 3.316) and 3.474 (2003: 3.992), respectively, to confirm the success on their way to becoming premier international journals. The Journal Impact Factors of European Journals of Organic and Inorganic Chemistry are at 2.426 (2003: 2.227) and 2.336 (2003: 2.482).
RSC Journals

The latest Impact Factors for journals published by the Royal Society of Chemistry have increased over 10% on average. For instance:

* The Analyst, 2.78 (+24%)
* Chem Soc Rev, 10.84 (+13%)
* Green Chemistry, 3.50 (+24%)
* Journal of Analytical and Atomic Spectrometry, 3.93 (+23%)
* Lab on a Chip, 5.05 (+18%)
* New Journal of Chemistry, 2.74 (+20%)
* Photochemical & Photobiological Sciences, 1.80 (+32%)

Organic & Biomolecular Chemistry received its first (partial) Impact Factor of 2.19, based on one year of citation data.

ACS Journals

Out of 125 journals listed, 10 ACS journals account for more than a quarter-of-a-million citations (327,050) — or nearly half the total citations in the category.

Analytical Chemistry is #1 in total citations (59,525) and #1 in impact factor (5.450) among journals publishing 100 or more articles in 2004.

The Journal of the American Chemical Society is also #5 in impact factor (6.903).Chemical Reviews is #1 in impact factor in chemistry with 20.233. Accounts of Chemical Research is #2 with an impact factor of 13.154.

Nano Letters is ranked #4 in impact factor (8.449), an increase from 6.144 in 2003.

Five ACS journals rank in the top ten in impact factor in organic chemistry:

* Organic Letters 4.195
* Bioconjugate Chemistry 3.766
* The Journal of Organic Chemistry 3.462
* Biomacromolecules 3.299
* Organometallics 3.196

The Journal of Physical Chemistry A (impact factor of 2.639) and The Journal of Physical Chemistry B (impact factor of 3.834); Chemistry of Materials records an impact factor of 4.103.
Elsevier Journals

Journals published by Elsevier also climbed in the IF ranks.

Analytical Chemistry


Organic Chemistry

* Tetrahedron: Asymmetry – 2.386
* Tetrahedron Letters – 2.484 (Tetrahedron & Tetrahedron Letters are 2 of the top 3 most cited Organic Chemistry journals are published by Elsevier with Tetrahedron Letters being the most cited chemistry Letters Journal in the World

Inorganic Chemistry


Chemical Engineering