Navigation Links
Mainz scientists confirm original tetrahedral model of the molecular structure of water
Date:2/12/2013

r H bonds of the tetrahedral model because of the different energy of the contacts. This asymmetry is the result of temporary disruptions to the hydrogen bond network, which take the form of extremely short term fluctuations occurring on a timescale of 100 to 200 femtoseconds. These fluctuations mean that one of the two donor or acceptor bonds is temporarily much stronger than the other. But these fluctuations precisely cancel each other out so that, on average over time, the tetrahedral structure is retained.

The results reported in 2004 using x-ray absorption spectroscopy were obtained using water molecules with high levels of momentary asymmetry, which is why essentially only two strong hydrogen bonds were observed in an otherwise tetrahedral structure. "Our findings have important implications as they help reconcile the symmetric and asymmetric views on the structure of water," write the scientists in an article published in Nature Communications. The results may also be relevant to research into molecular and biological systems in aqueous solutions and provide insight into protein folding, for example.


'/>"/>
Contact: Junior Professor Dr. Thomas D. Khne
kuehne@uni-mainz.de
49-613-139-23699
Johannes Gutenberg Universitaet Mainz
Source:Eurekalert

Page: 1 2

Related biology news :

1. Mainz University Medical Center attracts funding of Alexander von Humboldt Professorship
2. Mainz University coordinates new EU project on the origins of human settlement
3. Scientists from Bangalore and Mainz develop new methods for cooling of ions
4. Mainz University Medical Center agrees partnership with Yale University
5. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
6. Queens scientists seek vaccine for Pseudomonas infection
7. Scientists produce eye structures from human blood-derived stem cells
8. American Society of Plant Biologists honors early career women scientists
9. Brandeis scientists win prestigious prize for circadian rhythms research
10. Scientists discover new method of proton transfer
11. Salk scientists open new window into how cancers override cellular growth controls
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/10/2015)... WALTHAM, Mass., Feb. 10, 2015  Alere Inc. ... announced its financial results for the quarter ended ... Executive Officer and President of Alere said, "We ... refocussing Alere as the global leader in rapid ... closing the Alere Health divestiture in early January ...
(Date:2/5/2015)... Conn. , Jan. 26, 2015 NXT-ID, Inc. ... the "Company"), a biometric authentication company focused on the ... new corporate website ( http://www.nxt-id.com/ ) as part of ... smart wallet. The Company launched its new consumer website ... Gino Pereira , CEO of NXT-ID said, "Our new ...
(Date:2/5/2015)... , Jan. 30, 2015  It is gratifying ... power and potential for genomic science as a means ... disease prevention and treatment.  I was honored to participate ... government-funded precision medicine program. Since the ... science of genomics—from the first sequenced genome of a ...
Breaking Biology News(10 mins):Alere Inc. Announces Fourth Quarter 2014 Results 2Alere Inc. Announces Fourth Quarter 2014 Results 3Alere Inc. Announces Fourth Quarter 2014 Results 4Alere Inc. Announces Fourth Quarter 2014 Results 5Alere Inc. Announces Fourth Quarter 2014 Results 6Alere Inc. Announces Fourth Quarter 2014 Results 7Alere Inc. Announces Fourth Quarter 2014 Results 8Alere Inc. Announces Fourth Quarter 2014 Results 9Alere Inc. Announces Fourth Quarter 2014 Results 10Alere Inc. Announces Fourth Quarter 2014 Results 11Alere Inc. Announces Fourth Quarter 2014 Results 12Alere Inc. Announces Fourth Quarter 2014 Results 13Alere Inc. Announces Fourth Quarter 2014 Results 14Alere Inc. Announces Fourth Quarter 2014 Results 15Alere Inc. Announces Fourth Quarter 2014 Results 16Alere Inc. Announces Fourth Quarter 2014 Results 17Alere Inc. Announces Fourth Quarter 2014 Results 18Alere Inc. Announces Fourth Quarter 2014 Results 19Alere Inc. Announces Fourth Quarter 2014 Results 20Alere Inc. Announces Fourth Quarter 2014 Results 21Alere Inc. Announces Fourth Quarter 2014 Results 22Alere Inc. Announces Fourth Quarter 2014 Results 23Alere Inc. Announces Fourth Quarter 2014 Results 24Alere Inc. Announces Fourth Quarter 2014 Results 25Alere Inc. Announces Fourth Quarter 2014 Results 26Alere Inc. Announces Fourth Quarter 2014 Results 27Alere Inc. Announces Fourth Quarter 2014 Results 28Alere Inc. Announces Fourth Quarter 2014 Results 29Alere Inc. Announces Fourth Quarter 2014 Results 30Alere Inc. Announces Fourth Quarter 2014 Results 31Alere Inc. Announces Fourth Quarter 2014 Results 32Alere Inc. Announces Fourth Quarter 2014 Results 33Alere Inc. Announces Fourth Quarter 2014 Results 34Alere Inc. Announces Fourth Quarter 2014 Results 35Alere Inc. Announces Fourth Quarter 2014 Results 36
... Nationwide Children,s Hospital was awarded $11.5 million from the ... role as one of two Biospecimen Core Resources (BCR) for ... could total up to $49.2 million over six years. ... Health (NIH). The goal of the project is to perform ...
... Jan. 10, 2011 Aware, Inc. (Nasdaq: AWRE ... telecommunications and biometrics industries, today announced that on January 5, ... Jr. and John S. Stafford, III to the Aware Board ... a Class III Director and will serve on the Board,s ...
... EAST LANSING, Mich. As the rate of preterm ... U.S. births a Michigan State University epidemiologist is ... some mothers who deliver babies early are at an ... links would help researchers identify which groups of women ...
Cached Biology News:Nationwide Children's Hospital awarded $11.5 million contract extension for biospecimen banking 2Aware Announces Appointment of New Directors 2Aware Announces Appointment of New Directors 3Why do preterm deliveries pose cardiovascular risks for moms? 2
(Date:3/3/2015)... CARLOS, Calif. , March 3, 2015  Rosa ... expertise in drug-disease modeling and simulation research, today announced ... the 2015 American Society for Clinical Pharmacology and Therapeutics ... March 3-7 2015.   Logo - ... and Rosa will present a poster describing a quantitative ...
(Date:3/3/2015)... 2015 Cambridge Semantics, the leading provider ... today announced that it has been named to KMWorld’s ... Knowledge Management.’ , To create the list each ... and system integrators who identify organizations dedicated to the ... information to the right people at the right time. ...
(Date:3/3/2015)... Elsevier,s DirectCourse online curricula ... training to comply with new CMS requirements   ... new crosswalk tool to help providers of ... direct service workers as a means to comply with ... CMS amended the regulations, effective March 17, ...
(Date:3/3/2015)... 2015 GlobalStemCellsGroup.com has recruited ... Alcocer, a biomedical researcher and founding partner of Criogenix ... team of biomedical professors who will teach the “Diplomat ... SA de CV is a private company registered in ... Companies in Mexico (RENIECYT). , Camacho Alcocer will teach ...
Breaking Biology Technology:Rosa & Co. Announces Two Poster Presentations at the American Society for Clinical Pharmacology and Therapeutics 2015 Annual Meeting 2Rosa & Co. Announces Two Poster Presentations at the American Society for Clinical Pharmacology and Therapeutics 2015 Annual Meeting 3Cambridge Semantics Named to KMWorld’s 2015 ‘100 Companies That Matter in Knowledge Management’ 2Elsevier's DirectCourse Can Help States Meet and Exceed New CMS Requirements for Home and Community-Based Services 2Elsevier's DirectCourse Can Help States Meet and Exceed New CMS Requirements for Home and Community-Based Services 3Mario Camacho Alcocer Joins Global Stem Cells Group Faculty 2Mario Camacho Alcocer Joins Global Stem Cells Group Faculty 3
... just the expected crowd of educators is congregating at ... Conference that runs through Friday; as the technologies ... fields involved. In addition to K-12 and higher education ... and military organizations. , ,Distance Learning 2005 is addressing ...
... The Centers for Medicare and Medicaid Services plan to officially ... Vista within the next few weeks, according to news accounts ... ,CMS officials hope that providing the new program, known as ... records by private clinicians. , ,Vista, a software program used ...
... Ann Stunden, director of the Division of Information Technology ... 2005 award for information technology leadership from the national ... for "strong and ground-breaking leadership in the information technology ... ago." , ,A co-founder and executive director of ...
Cached Biology Technology:Education conference focusing on importance of integrating technology 2Education conference focusing on importance of integrating technology 3Education conference focusing on importance of integrating technology 4
Human Serum FDA Licensed US Donor Centers Sterile / Non-sterile: Sterile Filtered to 0.2 micron Information: Extensive Viral Testing ...
Normal human AB serum, pooled...
Human alpha-1-antitrypsin. No cross-reactivity with alpha-1-acid glycoprotein, serum albumin or other serum proteins....
Human/Mouse/Rat JNK Pan Specific Affinity Purified PAb...
Biology Products: