Author Archive

New theoretical method to model anisotropy in weak magnetically coupled systems

Scientists in France and Germany have come up with a method to model the electronic and magnetic properties of polynuclear complexes. Electron paramagnetic resonance (EPR) spectroscopy is used to measure magnetic anisotropy, but in weakly coupled systems, the signal can be very complicated or absent altogether.

Older methods using a spin ladder approach were only accurate at the lowest temperatures. The new method allowed the team to interpret complex experimental EPR data at various temperatures.

Such complexes are important in molecular magnets and are found in nature, so their study is of wide interest.

Read this HOT PCCP article today:

A combined high-field EPR and quantum chemical study on a weakly ferromagnetically coupled dinuclear Mn(III) complex. A complete analysis of the EPR spectrum beyond the strong coupling limit.

Marius Retegan, Marie-Noëlle Collomb, Frank Neese and Carole Duboc
DOI: 10.1039/C2CP42955A

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Professor Anne Zehnacker on a PCCP paper she recently enjoyed

Photograph of Prof. Anne Zehnacker-RentienWhen asked about her favourite recent article in PCCP, Advisory Board member Professor Anne Zehnacker-Rentien of the Institut des Sciences Moléculaires d’Orsay chose “Effect of hydrogen-bonding on the excited-state reactivity of fullerene derivatives and its impact on the control of the emission polarisation from photopolic single crystals” by Guillaume Raffy, Debdas Ray, Cheng-Che Chu, André Del Guerzo and Dario M. Bassani.

She says “I really enjoyed reading the paper. Photopolic materials are objects whose emission polarisation can be controlled using light. This article gives an elegant example of such fullerene-built single crystals, in which the photo-induced switch of polarisation is not accompanied by any other change in the fluorescence properties.”

The article is part of the PCCP themed issue on Hydrogen bonding in electronically excited states, so if you enjoyed this article please do take a look a the rest!

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Nuclear spin Hall and Klein tunnelling effects during oxidation of graphene

US scientists have studied spin Hall and Klein tunnelling effects during oxidation of graphene and few-layer graphene. Previous studies had suggested that the reductive properties of graphene change depending on the external magnetic field, with explosive redox reactions between graphene and strong oxidants accelerating following temperature reduction from 22 to 16 °C.

A typical way to oxidise graphene to oxide is to use a mixture of sulfuric acid, NaNO3 and KMnO4 (Hummers method). The Na+ and K+ ions of KMnO4 /NaNO3 have until now been assumed not to influence the redox reactions involved. This work shows that changing the cations has a big effect: replacing Na+ and K+ with Mg2+ and Ca2+, the team observed faster, more electronically delocalised complete oxidation to CO2 at temperatures between 16 and 21 °C. With Na+ and K+, they saw faster, more electronically localised oxidation to CO at temperatures >22 °C. These observations are attributed to the spin Hall effect (SHE) for the Na+ and K+ ions and Klein tunnelling effect for the Mg2+ and Ca2+ ions.

The observations will be very helpful in aiding understanding of the correlation between the structure and the properties of layered materials, such as graphene and boron nitride. The observed SHE gives an explanation of recently reported tunnelling of graphene electrons through boron nitride.

Read the full details of this fascinating PCCP article today:

Nuclear spin Hall and Klein tunneling effects during oxidation with electric and magnetic field inductions in graphene
Reginald B. Little, Felicia McClary, Bria Rice, Corine Jackman and James W. Mitchell
DOI: 10.1039/C2CP43276E

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HOT Perspective: hot spots in SERS

In this HOT PCCP Perspective Prof. Richard Van Duyne and coworkers describe the contribution of hot spots to the enhancement of signals observed in surface enhanced Raman spectroscopy (SERS), including techniques for creating and controlling these hot spots.

Read this fascinating PCCP Perspective in full today:

Creating, characterizing, and controlling chemistry with SERS hot spots
Samuel L. Kleinman, Renee R. Frontiera, Anne-Isabelle Henry, Jon A. Dieringer and Richard P. Van Duyne
DOI: 10.1039/C2CP42598J

Professor Van Duyne is co-Guest Editor of our upcoming themed issue on Plasmonics and Spectroscopy.

Submit an article for this exciting issue by 1st November 2012 .

Table of contents image

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PCCP Asian Symposia: final leg Seoul

Photograph of KCS-PCCP celebration cake

The beautiful cake to celebrate the Korean Chemical Society becoming the 18th Owner Society of PCCP.

The final leg of the PCCP Asian Symposia series took place in Seoul Korea yesterday.

A large audience listened to the excellent scientific talks including on graphene by Professor Byung Hee Hong, on the excited-state dynamics porphyrins and other large molceules probed by single molecule spectroscopy by Professor Dongho Kim, and on very high power energy storage by Professor Sang Bok Lee.

A talk by Professor Zee Hwan Kim of Korea University on “Plasmonics for single-molecule photochemistry and optical nanoscopy” generated much discussion.

The symposium also included a special cake cutting ceremony to celebrate that Korean Chemical Society becoming PCCP‘s 18th Owner Society. This means that now every time a Korean author publishes in PCCP, the KCS will receive a financial sum.

You can find more details about the other symposia in Beijing, China and Tsukuba, Japan in our previous posts. Thank you to everyone who took part in these excellent events.

We look forward to receiving you future contributions to PCCP – submit your best work today.

Keep up to date with our latest news and published articles by signing up to receive our free e-alerts.

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PCCP Editor’s choice: Professor Carlos Otero Arean

PCCP journal cover imagePhysical Chemistry Chemical Physics (PCCP) Advisory Board member Professor Carlos Otero Arean (University of the Balearic Islands), has picked his favourite articles recently published in PCCP.

You can read these articles for free for a limited period by clicking on the links below.

Publishing work of the highest quality in the broad fields of physical chemistry, chemical physics and biophysical chemistry, PCCP is the ideal place to publish your research.

Be among the first to hear about the newest articles being published in PCCP – sign up to receive our free table of contents e-alerts.

On behalf of the Editorial Board we invite you to submit your best work to PCCP.

Read Professor Arean’s Editor’s choice selection today:

Perspectives

Ultrafast UV spectroscopy: from a local to a global view of dynamical processes in macromolecules
Andrea Cannizzo
DOI: 10.1039/C2CP40567A

Adsorption of DNA onto gold nanoparticles and graphene oxide: surface science and applications
Juewen Liu
DOI: 10.1039/C2CP41186E

Original research

Rapid calculation of protein chemical shifts using bond polarization theory and its application to protein structure refinement
Igor Jakovkin, Marco Klipfel, Claudia Muhle-Goll, Anne S. Ulrich, Burkhard Luy and Ulrich Sternberg
DOI: 10.1039/C2CP41726J

Theoretical studies of HIV-1 reverse transcriptase inhibition
Katarzyna Świderek, Sergio Martí and Vicent Moliner
DOI: 10.1039/C2CP40953D

Pore size distribution and capacitance in microporous carbons
Fritz Stoeckli and Teresa A. Centeno
DOI: 10.1039/C2CP41545C

Thin silica films on Ru(0001): monolayer, bilayer and three-dimensional networks of [SiO4] tetrahedra
Bing Yang, William E. Kaden, Xin Yu, Jorge Anibal Boscoboinik, Yulia Martynova, Leonid Lichtenstein, Markus Heyde, Martin Sterrer, Radosław Włodarczyk, Marek Sierka, Joachim Sauer, Shamil Shaikhutdinov and Hans-Joachim Freund
DOI: 10.1039/C2CP41355H

Cooperative effects at water–crystalline silica interfaces strengthen surface silanol hydrogen bonding. An ab initio molecular dynamics study
Federico Musso, Pierre Mignon, Piero Ugliengo and Mariona Sodupe
DOI: 10.1039/C2CP40756F

Enhanced stabilization of the Tobacco mosaic virus using protic ionic liquids
Nolene Byrne, Brendan Rodoni, Fiona Constable, Swapna Varghese and James H. Davis
DOI: 10.1039/C2CP41625E

You may also be interested in our PCCP web collection of articles on biophysics and biophysical chemistry and our recent themed issue on the theoretical chemical physics of biological systems – please take a look.

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PCCP Asian Symposia – part two Tsukuba

Speakers and delegates at the PCCP-MANA Symposium

Speakers and delegates enjoying the sun at the PCCP-MANA Symposium

Speakers and delegates alike enjoyed a successful second leg of the PCCP Asian Symposia series on Nanotechnology, Materials and Physical Chemistry in Tsukuba, Japan. The meeting was held in conjunction with the International Centre for Materials Nanoarchitectonics (MANA).

The stimulating talks by speakers, both international and local, provoked lots of discussion. PCCP prize winner Kazuhiko Maeda (Tokyo Institute of Technology) took the opportunity to talk about his work on “Solar water splitting by modified oxynitride photocatalysts”.

The final leg of the symposia series will be in Seoul, Korea on Thursday 4th October. Please do join us if you can at Mogam Hall, Building 500, Seoul National University. Check out the PCCP-KCS Symposium schedulefor more information on this exciting meeting.

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PCCP Asian Symposia – first stop Beijing

Some of the speakers at the PCCP-ICCAS Symposium on Frontiers of physical chemistry in Beijing

The first of three PCCP Asian Symposia took place today in Beijing. PCCP Editorial Board member Professor Lijun Wan opened the symposium.  There was a varied and exciting programme of talks, with lots of discussion, with a very international flavour.

The scientific programme at all three meetings in Beijing, Tsukuba and Seoul features world class international and local speakers including gold catalysis expert Prof Graham Hutchings, predicted by ISI on 19 September 2012 to win the 2012 Nobel Prize for Chemistry.

The next symposium will take place on Monday 1st October in Tsukuba, Japan with the final leg on Thursday 4th October in Seoul, Korea.

We hope you can join us in Japan or Korea – for more details on the locations and schedules of the meetings check out our previous post.

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Free access to ultracold fluorine article via Gold for Gold

We are delighted that the second Gold for Gold open access article describing a potential new method for producing ultracold fluorine atoms has been published in Physical Chemistry Chemical Physics (PCCP). Gold for Gold enables UK RSC Gold subscribers to publish their RSC articles via Open Science, the RSC’s Gold Open Access option, by giving them credits equal to the value of their subscription.

table of contents imageThe article is by Dr Ian Lane of Queen’s University Belfast and is freely available to all. Read the full details of this exciting article for free today:

Ultracold fluorine production via Doppler cooled BeF
Ian Lane
Phys. Chem. Chem. Phys., 2012
DOI: 10.1039/C2CP42709E

Describing the Gold for Gold scheme, Ian says: “With research budgets tight, ensuring that exciting results reach the widest possible audience is often difficult. Allowing open access to my PCCP paper via the Gold for Gold initiative provides an opportunity to promote this research and I am therefore delighted to be the first recommended for this scheme by my School.”

More information on Gold for Gold is available on our website. If you have any further questions on the procedure, or are an interested customer from outside the UK, please contact us.

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Schedules for the PCCP Asian Symposia 2012

PCCP journal cover imageWe are looking forward to welcoming everyone to the upcoming PCCP Asian Symposia which will take place on 28th September in Beijing, China, 1st October in Tsukuba, Japan and 4th October in Seoul Korea.

You can find out more details about the Schedules of each symposium by following the links below.

PCCP-ICCAS Symposium: Frontiers of physical chemistry
Friday 28th September 2012
09:30 – 16:30
Lecture Theatre, Ground floor, Building One, Institute of Chemistry of Chinese Academy of Science (ICCAS), Beijing

PCCP-ICCAS Symposium Schedule

PCCP-MANA symposium on Nanotechnology, Materials and Physical Chemistry
Monday 1st October 2012
09:40 – 16:10
WPI-MANA Auditorium, Namiki, NIMS, Tsukuba

PCCP-MANA Symposium schedule

PCCP-KCS Symposium on Interfaces in Physical Chemistry
Thursday 4th October 2012
09:40 – 17:50
Mogam Hall, Building 500, Seoul National University

PCCP-KCS Symposium schedule

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