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Unusual EPR Spectra with Inverse Axial g values of Chlorosalicylate–Cu(II)–2,6-Pyridinedimethanol Complex in Frozen Water–Methanol Solution
Copper(II) complex systems containing 3,5-di, 4-, or 5-chlorosalicylic acids ( X -ClsalH) and different copper(II) salts (copper acetate (Cu(ac) 2 ) or copper sulphate (CuSO 4 )), with varying 2,6-pyridinedimethanol (pydime) concentration, [Cu(ac) 2 (aq) or CuSO 4 (aq) + 2 ( X -ClsalH(solv)) + x py...
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Published in: | Applied magnetic resonance 2013-05, Vol.44 (5), p.571-582 |
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description | Copper(II) complex systems containing 3,5-di, 4-, or 5-chlorosalicylic acids (
X
-ClsalH) and different copper(II) salts (copper acetate (Cu(ac)
2
) or copper sulphate (CuSO
4
)), with varying 2,6-pyridinedimethanol (pydime) concentration, [Cu(ac)
2
(aq) or CuSO
4
(aq) + 2 (
X
-ClsalH(solv)) +
x
pydime(solv)], where
X
= 3,5-di, 4-, or 5- and
x
= 0, 1, 2, 4, or 8, were prepared. The effects of two copper(II) salts (containing anions of different basicity) and N-donor ligand (pydime) with varying ligand-to-metal ratio (
x
) on the formation of resulting complexes were studied by electron paramagnetic resonance (EPR) spectroscopy in frozen water/methanol (1:3 v/v) solutions. For
x
≥ 2, unusual Cu(II) EPR spectra with "inverse" axial
g
values of (
g
⊥
>
g
∥
> 2.0023) were observed, which can indicate the compressed octahedral geometry of the central copper atom with the unpaired electron/hole localized on the
orbital. However, for
x
= 1, composite Cu(II) EPR spectra with both "usual" and "inverse" axial
g
values were detected. Finally, for
x
= 0 (ligand not present) Cu(II) EPR spectra only with the ‘usual’ axial
g
values of
g
∥
>
g
⊥
> 2.0023 were collected, which can indicate the elongated octahedral geometry of the central copper atom with the unpaired electron/hole localized on
orbital. The above described observations are independent of the usage of different copper(II) salts and
X
-chlorosalicylic acids. |
doi_str_mv | 10.1007/s00723-012-0431-9 |
format | article |
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X
-ClsalH) and different copper(II) salts (copper acetate (Cu(ac)
2
) or copper sulphate (CuSO
4
)), with varying 2,6-pyridinedimethanol (pydime) concentration, [Cu(ac)
2
(aq) or CuSO
4
(aq) + 2 (
X
-ClsalH(solv)) +
x
pydime(solv)], where
X
= 3,5-di, 4-, or 5- and
x
= 0, 1, 2, 4, or 8, were prepared. The effects of two copper(II) salts (containing anions of different basicity) and N-donor ligand (pydime) with varying ligand-to-metal ratio (
x
) on the formation of resulting complexes were studied by electron paramagnetic resonance (EPR) spectroscopy in frozen water/methanol (1:3 v/v) solutions. For
x
≥ 2, unusual Cu(II) EPR spectra with "inverse" axial
g
values of (
g
⊥
>
g
∥
> 2.0023) were observed, which can indicate the compressed octahedral geometry of the central copper atom with the unpaired electron/hole localized on the
orbital. However, for
x
= 1, composite Cu(II) EPR spectra with both "usual" and "inverse" axial
g
values were detected. Finally, for
x
= 0 (ligand not present) Cu(II) EPR spectra only with the ‘usual’ axial
g
values of
g
∥
>
g
⊥
> 2.0023 were collected, which can indicate the elongated octahedral geometry of the central copper atom with the unpaired electron/hole localized on
orbital. The above described observations are independent of the usage of different copper(II) salts and
X
-chlorosalicylic acids.</description><identifier>ISSN: 0937-9347</identifier><identifier>EISSN: 1613-7507</identifier><identifier>DOI: 10.1007/s00723-012-0431-9</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Acids ; Atoms and Molecules in Strong Fields ; Basicity ; Complex systems ; Copper ; Copper acetate ; Copper sulfate ; Electron paramagnetic resonance ; Laser Matter Interaction ; Ligands ; Methanol ; Organic Chemistry ; Physical Chemistry ; Physics ; Physics and Astronomy ; Solid State Physics ; Spectra ; Spectroscopy/Spectrometry</subject><ispartof>Applied magnetic resonance, 2013-05, Vol.44 (5), p.571-582</ispartof><rights>Springer-Verlag Wien 2013</rights><rights>Springer-Verlag Wien 2013.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-a2f4a9c5c3764a0576c9e9e2da70d92136f73765a4de13ebc65a50892644d89a3</citedby><cites>FETCH-LOGICAL-c316t-a2f4a9c5c3764a0576c9e9e2da70d92136f73765a4de13ebc65a50892644d89a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Husáriková, L.</creatorcontrib><creatorcontrib>Repická, Z.</creatorcontrib><creatorcontrib>Moncol, J.</creatorcontrib><creatorcontrib>Valigura, D.</creatorcontrib><creatorcontrib>Valko, M.</creatorcontrib><creatorcontrib>Mazúr, M.</creatorcontrib><title>Unusual EPR Spectra with Inverse Axial g values of Chlorosalicylate–Cu(II)–2,6-Pyridinedimethanol Complex in Frozen Water–Methanol Solution</title><title>Applied magnetic resonance</title><addtitle>Appl Magn Reson</addtitle><description>Copper(II) complex systems containing 3,5-di, 4-, or 5-chlorosalicylic acids (
X
-ClsalH) and different copper(II) salts (copper acetate (Cu(ac)
2
) or copper sulphate (CuSO
4
)), with varying 2,6-pyridinedimethanol (pydime) concentration, [Cu(ac)
2
(aq) or CuSO
4
(aq) + 2 (
X
-ClsalH(solv)) +
x
pydime(solv)], where
X
= 3,5-di, 4-, or 5- and
x
= 0, 1, 2, 4, or 8, were prepared. The effects of two copper(II) salts (containing anions of different basicity) and N-donor ligand (pydime) with varying ligand-to-metal ratio (
x
) on the formation of resulting complexes were studied by electron paramagnetic resonance (EPR) spectroscopy in frozen water/methanol (1:3 v/v) solutions. For
x
≥ 2, unusual Cu(II) EPR spectra with "inverse" axial
g
values of (
g
⊥
>
g
∥
> 2.0023) were observed, which can indicate the compressed octahedral geometry of the central copper atom with the unpaired electron/hole localized on the
orbital. However, for
x
= 1, composite Cu(II) EPR spectra with both "usual" and "inverse" axial
g
values were detected. Finally, for
x
= 0 (ligand not present) Cu(II) EPR spectra only with the ‘usual’ axial
g
values of
g
∥
>
g
⊥
> 2.0023 were collected, which can indicate the elongated octahedral geometry of the central copper atom with the unpaired electron/hole localized on
orbital. The above described observations are independent of the usage of different copper(II) salts and
X
-chlorosalicylic acids.</description><subject>Acids</subject><subject>Atoms and Molecules in Strong Fields</subject><subject>Basicity</subject><subject>Complex systems</subject><subject>Copper</subject><subject>Copper acetate</subject><subject>Copper sulfate</subject><subject>Electron paramagnetic resonance</subject><subject>Laser Matter Interaction</subject><subject>Ligands</subject><subject>Methanol</subject><subject>Organic Chemistry</subject><subject>Physical Chemistry</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Solid State Physics</subject><subject>Spectra</subject><subject>Spectroscopy/Spectrometry</subject><issn>0937-9347</issn><issn>1613-7507</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp1kE1KBDEQhYMoOP4cwF3AjYLR_HR3OktpRh1QFEdxGWJ32olkkjHpVseVVxBv6EnMMIorN1UF731V1ANgh-BDgjE_iqlQhjChCGeMILECBqQgDPEc81UwwIJxJFjG18FGjI8Yk7wkfAA-bl0fe2Xh8Ooajme67oKCL6abwJF71iFqePxqkvwAn5XtdYS-hdXE-uCjsqaeW9Xpr_fPqt8bjfbTQA8KdDUPpjFON2aqu4ly3sLKT2dWv0Lj4Enwb9rBuwSGBFz8Wsbe9p3xbgustcpGvf3TN8HtyfCmOkPnl6ej6vgc1YwUHVK0zZSo85rxIlM450UttNC0URw3ghJWtDxJucoaTZi-r9OY41LQIsuaUii2CXaXe2fBP6XPOvno--DSSUkFKXFJaIaTiyxddfo4Bt3KWTBTFeaSYLlIXi6Tlyl5uUheisTQJROT1z3o8Lf5f-gbpu-J0g</recordid><startdate>20130501</startdate><enddate>20130501</enddate><creator>Husáriková, L.</creator><creator>Repická, Z.</creator><creator>Moncol, J.</creator><creator>Valigura, D.</creator><creator>Valko, M.</creator><creator>Mazúr, M.</creator><general>Springer Vienna</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7XB</scope><scope>88I</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>M2P</scope><scope>P5Z</scope><scope>P62</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope></search><sort><creationdate>20130501</creationdate><title>Unusual EPR Spectra with Inverse Axial g values of Chlorosalicylate–Cu(II)–2,6-Pyridinedimethanol Complex in Frozen Water–Methanol Solution</title><author>Husáriková, L. ; Repická, Z. ; Moncol, J. ; Valigura, D. ; Valko, M. ; Mazúr, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-a2f4a9c5c3764a0576c9e9e2da70d92136f73765a4de13ebc65a50892644d89a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Acids</topic><topic>Atoms and Molecules in Strong Fields</topic><topic>Basicity</topic><topic>Complex systems</topic><topic>Copper</topic><topic>Copper acetate</topic><topic>Copper sulfate</topic><topic>Electron paramagnetic resonance</topic><topic>Laser Matter Interaction</topic><topic>Ligands</topic><topic>Methanol</topic><topic>Organic Chemistry</topic><topic>Physical Chemistry</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Solid State Physics</topic><topic>Spectra</topic><topic>Spectroscopy/Spectrometry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Husáriková, L.</creatorcontrib><creatorcontrib>Repická, Z.</creatorcontrib><creatorcontrib>Moncol, J.</creatorcontrib><creatorcontrib>Valigura, D.</creatorcontrib><creatorcontrib>Valko, M.</creatorcontrib><creatorcontrib>Mazúr, M.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Science Database</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><jtitle>Applied magnetic resonance</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Husáriková, L.</au><au>Repická, Z.</au><au>Moncol, J.</au><au>Valigura, D.</au><au>Valko, M.</au><au>Mazúr, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Unusual EPR Spectra with Inverse Axial g values of Chlorosalicylate–Cu(II)–2,6-Pyridinedimethanol Complex in Frozen Water–Methanol Solution</atitle><jtitle>Applied magnetic resonance</jtitle><stitle>Appl Magn Reson</stitle><date>2013-05-01</date><risdate>2013</risdate><volume>44</volume><issue>5</issue><spage>571</spage><epage>582</epage><pages>571-582</pages><issn>0937-9347</issn><eissn>1613-7507</eissn><abstract>Copper(II) complex systems containing 3,5-di, 4-, or 5-chlorosalicylic acids (
X
-ClsalH) and different copper(II) salts (copper acetate (Cu(ac)
2
) or copper sulphate (CuSO
4
)), with varying 2,6-pyridinedimethanol (pydime) concentration, [Cu(ac)
2
(aq) or CuSO
4
(aq) + 2 (
X
-ClsalH(solv)) +
x
pydime(solv)], where
X
= 3,5-di, 4-, or 5- and
x
= 0, 1, 2, 4, or 8, were prepared. The effects of two copper(II) salts (containing anions of different basicity) and N-donor ligand (pydime) with varying ligand-to-metal ratio (
x
) on the formation of resulting complexes were studied by electron paramagnetic resonance (EPR) spectroscopy in frozen water/methanol (1:3 v/v) solutions. For
x
≥ 2, unusual Cu(II) EPR spectra with "inverse" axial
g
values of (
g
⊥
>
g
∥
> 2.0023) were observed, which can indicate the compressed octahedral geometry of the central copper atom with the unpaired electron/hole localized on the
orbital. However, for
x
= 1, composite Cu(II) EPR spectra with both "usual" and "inverse" axial
g
values were detected. Finally, for
x
= 0 (ligand not present) Cu(II) EPR spectra only with the ‘usual’ axial
g
values of
g
∥
>
g
⊥
> 2.0023 were collected, which can indicate the elongated octahedral geometry of the central copper atom with the unpaired electron/hole localized on
orbital. The above described observations are independent of the usage of different copper(II) salts and
X
-chlorosalicylic acids.</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><doi>10.1007/s00723-012-0431-9</doi><tpages>12</tpages></addata></record> |
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subjects | Acids Atoms and Molecules in Strong Fields Basicity Complex systems Copper Copper acetate Copper sulfate Electron paramagnetic resonance Laser Matter Interaction Ligands Methanol Organic Chemistry Physical Chemistry Physics Physics and Astronomy Solid State Physics Spectra Spectroscopy/Spectrometry |
title | Unusual EPR Spectra with Inverse Axial g values of Chlorosalicylate–Cu(II)–2,6-Pyridinedimethanol Complex in Frozen Water–Methanol Solution |
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