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Showing 1 to 2 of 2 for “"ΣΟΥΛΦΙΔΙΑ"”.
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ΜΕΛΕΤΗ ΜΑΓΝΗΤΟΑΝΤΙΣΤΑΣΗΣ ΣΕ ΜΟΝΟΚΡΥΣΤΑΛΛΟΥΣ FE7S8
THIS IS A STUDY OF THE MAGNETORESISTANCE IN ANTIFERROMAGNETIC SEMICONDUCTORS AND SPECIALLY IN PYRRHOTITE FE7S8 CUT FROM NATURAL SINGLE CRYSTALS (WITH ORIENTATIONS B C AND B// FROM 88 TO 607K. BEYOND THE NEEL POINT TN 600K AND FOR MAGNETIC FIELDS B FROM 0 TO 7 KG. A MAGNETORESISTANCE OF THE ORDER OF …
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ΧΡΗΣΕΙΣ ΤΩΝ ΣΟΥΛΦΙΔΙΩΝ ΣΤΗΝ ΟΡΓΑΝΙΚΗ ΣΥΝΘΕΣΗ. 1) ΜΕΘΟΔΟΛΟΓΙΑ ΣΧΗΜΑΤΙΣΜΟΥ ΑΛΛΥΛΙΚΩΝ ΚΑΡΒΑΝΙΟΝΤΩΝ ΜΕΡΙΚΩΣ ΕΝΣΩΜΑΤΩΜΕΝΩΝ ΣΕ ΙΣΟΚΥΚΛΙΚΟΥΣ ΔΑΚΤΥΛΙΟΥΣ 2) ΕΠΙΜΗΚΥΝΣΗ ΑΛΚΥΛΟΜΑΔΟΣ ΟΡΓΑΝΟΛΙΘΙΚΩΝ ΕΝΩΣΕΩΝ
THIS RESEARCH WORK HAS TWO PARTS. IN THE FIRST PART A NEW METHOD FOR THE FORMATION OF ALLYLIC CARBANIONS WAS DEVELOPED, TWO CARBONS OF WHICH TAKE PART IN ISOCYCLIC RINGS. METHYL-PHENYL SULFIDE WAS USED FOR THIS PURPOSE. COUPLING OF THE LITHIATED SULFIDE WITH A NUMBER OF ALIPHATIC CYCLOKETONES LED …