Filters
Results 1 - 10 of 27
Results 1 - 10 of 27.
Search took: 0.027 seconds
| Sort by: date | relevance |
[en] The data on synthesis, conformational and complex-forming properties of calyx (4) resorcynaren and calax(n) arenes, modified by phosphorus-containing fragments are summarized. Reactions with participation of BuLi, lanthanides, actinides and BF3 are considered
Journal
[en] Integral solution enthalpies of lithium perchlorate in diethyl ether, acetonitrile, acetone and DMSO at 298,2 K are determined calorimetrically; they are equal to -6.2, -9.1, -15.9 and -18.0 kcal/mol correspondingly. For diethyl ether dependence of integral solution enthalpy on salt concentration within the range from 3 x 10-3 up to 5,6 mol/l is determined. Reducing exoeffect of salt dissolution in the ether from -6 up to -5 kcal/mol in the range of small concentrations (3 x 10-3 - 3 x 10-2 mol/l), the constancy of the effect in the 5 x 10-2 - 1.3 mol/l range and following smooth reducing exoeffect up to -3.2 kcal/mol at salt concentration 5.6 mol/l is pointed out
Journal
[en] One reports about a new technique for the synthesis of ruthenocene asymmetric derivatives based on photochemical reaction of naphthalene ruthenium complex [CpRu(η6-C10H8)]+ (1) with cyclopentadienes and cyclopentadienide-anions. Reaction of 1 compound with cyclopentadiene surplus under visible light irradiation is accompanied by the naphthalene displacement and results in the ruthenocene Cp2Ru (2a) 73% yield. Reaction of 1 compound with C5Me5H results in the pentaruthenocene 2b 73% yield. Structure of the prepared compounds is confirmed by the NMR 1H data
[ru]
Сообщается о новом методе синтеза несимметричных производных рутеноцена, основанном на фотохимической реакции нафталинового комплекса рутения [CpRu(η6-C10H8)]+ (1) с циклопентадиенами и циклопентадиенид-анионами. Реакция соединения 1 с избытком циклопентадиена при облучении видимым светом сопровождается вытеснением нафталина и приводит к рутеноцену Cp2Ru (2a) с выходом 73%. Реакция соединения 1 с C5Me5H дает пентаметилрутеноцен 2b с выходом 82%. Строение полученных соединений подтверждено данными спектроскопии ЯМР 1HJournal
Izvestiya Akademii Nauk. Rossijskaya Akademiya Nauk. Seriya Khimicheskaya; ISSN 1026-3500; 
; CODEN IASKEA; (no.9); p. 1997-1998
; CODEN IASKEA; (no.9); p. 1997-1998
No abstract available
Source
Rossijskaya Akademiya Nauk, Moscow (Russian Federation); Rossijskoe Khimicheskoe Obshchestvo im. D.I. Mendeleeva, Moscow (Russian Federation); Pravitel'stvo Moskvy, Moscow (Russian Federation); Ministerstvo Obrazovaniya i Nauki Rossijskoj Federatsii, Moscow (Russian Federation); Natsional'nyj Komitet Rossijskikh Khimikov, Moscow (Russian Federation); Rossijskij Soyuz Khimikov, Moscow (Russian Federation); 506 p; ISBN 978-5-94691-272-3 (VOLUME 5); ; 2007; p. 123; 18. Mendeleev congress on general and applied chemistry; XVIII Mendeleevskij s''ezd po obshchej i prikladnoj khimii; Moscow (Russian Federation); 23-28 Sep 2007
; 2007; p. 123; 18. Mendeleev congress on general and applied chemistry; XVIII Mendeleevskij s''ezd po obshchej i prikladnoj khimii; Moscow (Russian Federation); 23-28 Sep 2007
[en] The guest-host type complexing constants of calyx[4]resorcinarene (H8L) with [Ln(Phen)2]3+ cations (Phen - 1, 10-phenanthroline, Ln=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) in neutral and low-alkaline water-organic (dimethylsulfoxide, isopropanol) media have been ascertained by the method of pH-metric titration. Essential increase in the complexes stability with their ordinal number increase from La3+ to Ho3+ in lanthanide series has been detected
Journal
[en] The O,O-dibutyl-N-benzylamine- and O,O-dibutyl-N-phenyl-aminomethylphosphonate derivatives of tetramethylcalyx[4]resorcinarene (L) were prepared and characterized. Their effectiveness in extraction of lanthanum(3) ions from aqueous medium into chloroform in the presence of picrate ions, which is accompanied by formation of complex featuring the composition [La(Pic)3(L)2], was demonstrated. The value of the complex extraction constant made up 1.6 x 1013 (mol/l)-5
[ru]
Получены и охарактеризованы О,О-дибутил-N-бензиламино- и О,О-дибутил-N-фенил-аминометилфосфонатные производные тетраметилкаликс[4]резорцинарена (L). Продемонстрирована их эффективность в экстракции ионов лантана(3) из водной среды в хлороформ в присутствии пикрат-ионов, которая сопровождается образованием комплекса состава [La(Pic)3(L)2]. Значение константы экстракции этого комплекса составило 1.6 х 1013 (моль/л)-5Journal
No abstract available
Source
Rossijskaya Akademiya Nauk, Moscow (Russian Federation); Inst. Khimii Rastvorov RAN, Ivanovo (Russian Federation); Ivanovskij Gosudarstvennyj Khimiko-Tekhnologicheskij Univ., Ivanovo (Russian Federation); Rossijskij Fond Fundamental'nykh Issledovanij, Moscow (Russian Federation); Rossijskoe Khimicheskoe Obshchestvo im. D.I. Mendeleeva, Moscow (Russian Federation); 248 p; ISBN 978-5-85229-405-0; ; 2011; p. 8-9; 11. International conference on Problems of solvation and complex formation in solutions; XI Mezhdunarodnaya konferentsiya Problemy sol'vatatsii i kompleksoobrazovaniya v rastvorakh i VI Konferentsiya molodykh uchenykh Teoreticheskaya i ehksperimental'naya khimiya zhidkofaznykh sistem (Krestovskie chteniya); Ivanovo (Russian Federation); 10-14 Oct 2011; 6. Conference of young scientists on Theoretical and experimental chemistry of liquid-phase systems (Krestovsky readings); XI Mezhdunarodnaya konferentsiya Problemy sol'vatatsii i kompleksoobrazovaniya v rastvorakh i VI Konferentsiya molodykh uchenykh Teoreticheskaya i ehksperimental'naya khimiya zhidkofaznykh sistem (Krestovskie chteniya); Ivanovo (Russian Federation); 10-14 Oct 2011; 9 refs.
; 2011; p. 8-9; 11. International conference on Problems of solvation and complex formation in solutions; XI Mezhdunarodnaya konferentsiya Problemy sol'vatatsii i kompleksoobrazovaniya v rastvorakh i VI Konferentsiya molodykh uchenykh Teoreticheskaya i ehksperimental'naya khimiya zhidkofaznykh sistem (Krestovskie chteniya); Ivanovo (Russian Federation); 10-14 Oct 2011; 6. Conference of young scientists on Theoretical and experimental chemistry of liquid-phase systems (Krestovsky readings); XI Mezhdunarodnaya konferentsiya Problemy sol'vatatsii i kompleksoobrazovaniya v rastvorakh i VI Konferentsiya molodykh uchenykh Teoreticheskaya i ehksperimental'naya khimiya zhidkofaznykh sistem (Krestovskie chteniya); Ivanovo (Russian Federation); 10-14 Oct 2011; 9 refs.
No abstract available
Source
Rossijskaya Akademiya Nauk, Moscow (Russian Federation); Inst. Khimii Rastvorov RAN, Ivanovo (Russian Federation); Ivanovskij Gosudarstvennyj Khimiko-Tekhnologicheskij Univ., Ivanovo (Russian Federation); Rossijskij Fond Fundamental'nykh Issledovanij, Moscow (Russian Federation); Rossijskoe Khimicheskoe Obshchestvo im. D.I. Mendeleeva, Moscow (Russian Federation); 248 p; ISBN 978-5-85229-405-0; ; 2011; p. 22; 11. International conference on Problems of solvation and complex formation in solutions; XI Mezhdunarodnaya konferentsiya Problemy sol'vatatsii i kompleksoobrazovaniya v rastvorakh i VI Konferentsiya molodykh uchenykh Teoreticheskaya i ehksperimental'naya khimiya zhidkofaznykh sistem (Krestovskie chteniya); Ivanovo (Russian Federation); 10-14 Oct 2011; 6. Conference of young scientists on Theoretical and experimental chemistry of liquid-phase systems (Krestovsky readings); XI Mezhdunarodnaya konferentsiya Problemy sol'vatatsii i kompleksoobrazovaniya v rastvorakh i VI Konferentsiya molodykh uchenykh Teoreticheskaya i ehksperimental'naya khimiya zhidkofaznykh sistem (Krestovskie chteniya); Ivanovo (Russian Federation); 10-14 Oct 2011; 2 refs.
; 2011; p. 22; 11. International conference on Problems of solvation and complex formation in solutions; XI Mezhdunarodnaya konferentsiya Problemy sol'vatatsii i kompleksoobrazovaniya v rastvorakh i VI Konferentsiya molodykh uchenykh Teoreticheskaya i ehksperimental'naya khimiya zhidkofaznykh sistem (Krestovskie chteniya); Ivanovo (Russian Federation); 10-14 Oct 2011; 6. Conference of young scientists on Theoretical and experimental chemistry of liquid-phase systems (Krestovsky readings); XI Mezhdunarodnaya konferentsiya Problemy sol'vatatsii i kompleksoobrazovaniya v rastvorakh i VI Konferentsiya molodykh uchenykh Teoreticheskaya i ehksperimental'naya khimiya zhidkofaznykh sistem (Krestovskie chteniya); Ivanovo (Russian Federation); 10-14 Oct 2011; 2 refs.
No abstract available
Source
Rossijskaya Akademiya Nauk, Moscow (Russian Federation); Rossijskoe Khimicheskoe Obshchestvo im. D.I. Mendeleeva, Moscow (Russian Federation); Pravitel'stvo Moskvy, Moscow (Russian Federation); Ministerstvo Obrazovaniya i Nauki Rossijskoj Federatsii, Moscow (Russian Federation); Natsional'nyj Komitet Rossijskikh Khimikov, Moscow (Russian Federation); Rossijskij Soyuz Khimikov, Moscow (Russian Federation); 506 p; ISBN 978-5-94691-272-3 (VOLUME 5); ; 2007; p. 119; 18. Mendeleev congress on general and applied chemistry; XVIII Mendeleevskij s''ezd po obshchej i prikladnoj khimii; Moscow (Russian Federation); 23-28 Sep 2007
; 2007; p. 119; 18. Mendeleev congress on general and applied chemistry; XVIII Mendeleevskij s''ezd po obshchej i prikladnoj khimii; Moscow (Russian Federation); 23-28 Sep 2007
No abstract available
Source
Rossijskaya Akademiya Nauk, Moscow (Russian Federation); Rossijskoe Khimicheskoe Obshchestvo im. D.I. Mendeleeva, Moscow (Russian Federation); Pravitel'stvo Moskvy, Moscow (Russian Federation); Ministerstvo Obrazovaniya i Nauki Rossijskoj Federatsii, Moscow (Russian Federation); Natsional'nyj Komitet Rossijskikh Khimikov, Moscow (Russian Federation); Rossijskij Soyuz Khimikov, Moscow (Russian Federation); 506 p; ISBN 978-5-94691-272-3 (VOLUME 5); ; 2007; p. 74; 18. Mendeleev congress on general and applied chemistry; XVIII Mendeleevskij s''ezd po obshchej i prikladnoj khimii; Moscow (Russian Federation); 23-28 Sep 2007
; 2007; p. 74; 18. Mendeleev congress on general and applied chemistry; XVIII Mendeleevskij s''ezd po obshchej i prikladnoj khimii; Moscow (Russian Federation); 23-28 Sep 2007
| 1 | 2 | 3 | Next |