Is ferromagnetism an intrinsic property of the CuII/GdIII couple? 1. Structures and magnetic properties of two novel dinuclear complexes with a mu-phenolato-mu-oximato (Cu,Gd) core
Two original dinuclear (Cu(II),Gd(III)) complexes (1 and 2) deriving from polydentate nonsymmetrical Schiff base ligands LiH2 have been prepared. Formally they differ by the length of the diamino chain. They crystallize in the orthorhombic Pbca (No. 61) (1) and in the monoclinic P2(1/n) (No. 14) (2) space groups. The cell parameters are a = 12.6295(7) A, b = 20.7894(9) A, c = 18.3301(13) A, and Z = 8 for 1 and a = 12.7246(16) A, b = 13.5691(17) A, c = 14.5310(19) A, beta = 94.629(16) degrees , and Z = 4 for 2. These structural studies show that in both complexes the CuII and GdIII ions are doubly bridged by a phenolato oxygen atom and an oximato (N-O) pair. The bridging network is not planar. The more important distortions are observed for the complex having the larger diamino chain. Unexpectedly the latter complex presents an antiferromagnetic interaction, but the related J value is small (J approximately equal to -0.49 cm(-1)). In the former complex the interaction is ferromagnetic (J approximately equal to 3.5 cm(-1)) as it is for complexes containing (CuO2Gd) bridging cores which yield J values varying from 1.4 to 10.1 cm(-1).
| Medienart: |
Artikel |
|---|
| Erscheinungsjahr: |
2000 |
|---|---|
| Erschienen: |
2000 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:39 |
|---|---|
| Enthalten in: |
Inorganic chemistry - 39(2000), 2 vom: 24. Jan., Seite 169-73 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Costes, J P [VerfasserIn] |
|---|
| Themen: |
|---|
| Anmerkungen: |
Date Completed 29.03.2001 Date Revised 14.08.2019 published: Print Citation Status PubMed-not-MEDLINE |
|---|
| Förderinstitution / Projekttitel: |
|
|---|
| PPN (Katalog-ID): |
NLM111825792 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM111825792 | ||
| 003 | DE-627 | ||
| 005 | 20231222160432.0 | ||
| 007 | tu | ||
| 008 | 231222s2000 xx ||||| 00| ||eng c | ||
| 028 | 5 | 2 | |a pubmed24n0373.xml |
| 035 | |a (DE-627)NLM111825792 | ||
| 035 | |a (NLM)11272521 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Costes, J P |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Is ferromagnetism an intrinsic property of the CuII/GdIII couple? 1. Structures and magnetic properties of two novel dinuclear complexes with a mu-phenolato-mu-oximato (Cu,Gd) core |
| 264 | 1 | |c 2000 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ohne Hilfsmittel zu benutzen |b n |2 rdamedia | ||
| 338 | |a Band |b nc |2 rdacarrier | ||
| 500 | |a Date Completed 29.03.2001 | ||
| 500 | |a Date Revised 14.08.2019 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Two original dinuclear (Cu(II),Gd(III)) complexes (1 and 2) deriving from polydentate nonsymmetrical Schiff base ligands LiH2 have been prepared. Formally they differ by the length of the diamino chain. They crystallize in the orthorhombic Pbca (No. 61) (1) and in the monoclinic P2(1/n) (No. 14) (2) space groups. The cell parameters are a = 12.6295(7) A, b = 20.7894(9) A, c = 18.3301(13) A, and Z = 8 for 1 and a = 12.7246(16) A, b = 13.5691(17) A, c = 14.5310(19) A, beta = 94.629(16) degrees , and Z = 4 for 2. These structural studies show that in both complexes the CuII and GdIII ions are doubly bridged by a phenolato oxygen atom and an oximato (N-O) pair. The bridging network is not planar. The more important distortions are observed for the complex having the larger diamino chain. Unexpectedly the latter complex presents an antiferromagnetic interaction, but the related J value is small (J approximately equal to -0.49 cm(-1)). In the former complex the interaction is ferromagnetic (J approximately equal to 3.5 cm(-1)) as it is for complexes containing (CuO2Gd) bridging cores which yield J values varying from 1.4 to 10.1 cm(-1) | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Dahan, F |e verfasserin |4 aut | |
| 700 | 1 | |a Dupuis, A |e verfasserin |4 aut | |
| 700 | 1 | |a Laurent, J P |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Inorganic chemistry |d 1966 |g 39(2000), 2 vom: 24. Jan., Seite 169-73 |w (DE-627)NLM110650298 |x 1520-510X |7 nnns |
| 773 | 1 | 8 | |g volume:39 |g year:2000 |g number:2 |g day:24 |g month:01 |g pages:169-73 |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 39 |j 2000 |e 2 |b 24 |c 01 |h 169-73 | ||