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Relevant particulars on the CSIR Research Scheme,NEHU,Chemistry
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Salient Features of the Research Proposal
The application for the Grant of Research Scheme for a Project at North Eastern Hill University, Shillong, was sent to the
EMR Division,CSIR, New Delhi ,in the month of September,2000. by Dr.S.Aravamudhan,the Principal Investigator ( PI ) Designate >
duly attested by the authorities of the North Eastern Hill University (NEHU),Shillong, as required in the prescribed form of the CSIR. BR>
On 21st March 2002, the PI could collect a letter from the CSIR received at the office of the Department of Chemistry, NEHU, Shillong,
and the letter conveyed the approval of the Sanction of the Research Scheme. The PI has conveyed to the CSIR that the Commencelent Date
of the Scheme would be 01.01.2002.
SECTION C: Detailed Research Proposal (of the NEHU CSIR Research Scheme:Principal Investigator:
Dr S Aravamudhan,Lecturer,Department of ChemistryNorth Eastern HillUniversity, Shillong,793022, Meghalaya)
1. Title of the Project: SHIELDING PARAMETERS OF NUCLEI: FACILITIES FOR THE EXPERIMENTAL DETERMINATION
AND CALCULATION BYTHEORETICAL PROCEDURES-TO OBTAIN INFORMATION ON
CRYSTAL STRUCTURES AND MOLECULAR ELECTRONIC STRUCTURES.
2. Five Key Words: SOLID STATE, NMR PARAMRETERS, MOLECULAR ELECTRONIC STRUCTURE, CRYSTALS, NMR MASS PROBE
3. Review of Literature: Bibliography:
1.E.R.Andrew, "Nuclear Magnetic Resonance",CambridgeUniversity Press, Cambridge,1955
2.A.Abragam, "Principles of Nuclear Magnetism",Oxford University Press,Oxford,1961
3.N.Bloembergen,"Nuclear Magnetic Relaxation",Benjamin,New York,1961
4.A.Carrington and A.D.McLachlan,"Introduction to Magnetic Resonance",Harper and Row,New York,1967
5.M.Goldman, "Spin Temperature and Magnetic Resonance in Solids",Oxford University Press,Oxford,1970
6.D.Shaw, "Fourier Transform NMR Spectroscopy", Elsevier Amsterdam,1976
7.T.C.Farre and E.D.Becker,"Pulse and Fourier Transform NMR",Academic Press,New York,1971
8.U.Haeberlen,"High Resolution NMR in Solids:Selective Averaging",Academic Press,New York,!976
9.C.P.Slichter,"Principles of Magnetic Resonance",2nd Ed.,SpringerVerlag,Heidelberg,1978
10.M.Mehring,"High Resolution NMR Solids", Springer Verlag,Heidelberg,1978
11.C.A.Fyfe,"Solid State NMR for Chemists",CFC Press,Guelph,Ontario,1983
12.B.C.Gerstein and C.R.Dybowski,"Transient Techniques in NMR of Solids",Academic Press Inc., 1985
4. Brief Outlineof the Objectives:
As it was made out in the title of theproject itself, it has been a persuasive effort by the PI to carry out as much of
Solid State NMR work as would be possible fromthe place where the PI's employment supposed tobe tenable,sothat there could
eventually ba trail at least that some effort toadvance magnetic resonance aspects was taken tolet the users know and be aware
of the practicakities of suchexperiments and studies. A minispec (BRUKER at website http://www.bruker.de ) or a Bench-top pulsed NMR
(RESONANCE INSTRUMENTS LTD UK http://www.rototec-spintec.com , http://www.resonance-instruments.com , http://www.universal-systems.com )
capability canbe made available for the benefit of regional requirements of measuring physical properties of samples from
wide-line, time-domain,transient NMR Signals.
5. Significance of the Project: {see below the insertion dated 08-11-2004}
Since only an AC 300 (Bruker) High-resolution NMR spectrometer (for liquid samples) is available, the first step would be
to obtain isotropic Chemical-shifts (usually gathered from the liquid-state NMR) from solid powder specimens by equipping with a Magic Angle
Sample Spinning (MASS) accessory. Since know-how for the construction of suchMAS probe is available within the country (Poster presentation
at the NMRS Symposium at IIT/Delhi in Feb.1997 by Ranpura(TIFR,Bombay & Ganapathy NCL,Pune) and with the experience of the PI in such
probe constructions, it is intended to take efforts to construct such probe (instead of buying an accessory unit) indigeously. This would facilitate
the multi-nuclear facility of the AC 300 more effective and the RSIC would be able tofurnish much better utilization criteria forthe NMR facility.Since
at the National Chemical Laboratory, a variety of PC (work stations) data acquiring from the(raw-data in the form of simple FID's from the console
through appropriate interface and soft-ware transfer packages) are in-house in NCL,if it would be possible to obtain these FID data from a location
like NCL to a location like RSIC,NEHU by appropriate transfer means,the difficulties associated with actually housing expensive spectrometers
requiring stringent maintenance conditions could be localised to favourable sites and only data could be transferred and processed and stored
at a place where the results could be useful. It is intended tolook forsuch modalities of operation by acquiring work-stations(PC's and soft-wares)
when this project could be found viable for funding by the EMR Division of the CSIR. There could be mutual advantage due to PI's paticipationin
the single-crystal , multiple-pulse, CP MASS & CRAMPS exoeriments being initiated at NCL
PHASING OF THE PROJECT:
(i) Construction of MASS probe for AC 300 Spectrometer at the RSIC, NEHU.
(ii) Simultaneously acquire & install work-station facilities for NMR ata acquiring and processing,
to proceed with the objectives outlined in items 4,5 Section C .
(iii) For the above look for technically qualified people to be staff in the project and hence train/qualify
personnel inSolid-state aspects.
(iv) To try toprovide a simple bench-top pulsed NMR facility (for demonstrations and for the practical utilization
of NMR methods in measuring physical properties by wide-line ,time-domain, transient NMR signals - properties like
the proton count, viscosity, droplet sizes, charcoal analysisetc., Several of these properties are required frequently
in various contexts in this region and the potentialof NMR is yet tobe tapped for these purposes .
Insertion: Added on 08-11-2004
In fact the inspiration to go about this construction of a Magic Angle Spinning accessory for solid powder samples was
initially available from the publication of the simple possibility of such experiments Using a Conventional Fourier Transform
NMR Spectrometer by David J. Burton, Robin K.Harris, Lawrence H.Merwin in the "Journal of Magnetic Resonance" as Communications
in Volume 39, pages 159-162, Year 1980.
Visitors to this site are hereby requested to pay due attention to the materials and those aspirants who would like to know about the
possibilities of being appointed as staff in this project may visit also the site http://hrdcsir.tripod.com/ and with all the informations
gathered set out to correspond appropritely early enough.- PI
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Insertion: Added on 08-11-2004
In fact the inspiration to go about this construction
of a Magic Angle Spinning accessory for solid powder samples was initially available from the publication of the simple possibility
of such experiments Using a Conventional Fourier Transform NMR Spectrometer by David J. Burton, Robin K.Harris, Lawrence
H.Merwin in the "Journal of Magnetic Resonance" as Communications in Volume 39, pages 159-162, Year 1980.
Visitors to this site are hereby requested to pay due attention to the materials and
those aspirants who would like to know about the possibilities of being appointed as staff in this project may visit also
the site http://hrdcsir.tripod.com/ and with all the informations gathered set out to correspond appropritely early enough.- PI
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