عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
TLpq303640164
زبان اثر
زبان متن نوشتاري يا گفتاري و مانند آن
انگلیسی
عنوان و نام پديدآور
عنوان اصلي
Complexes of platinum containing sulphide and diphosphine ligands
نام عام مواد
[Thesis]
نام نخستين پديدآور
N. Hadj-Bagheri
نام ساير پديدآوران
R. J. Puddephatt
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
The University of Western Ontario (Canada)
تاریخ نشرو بخش و غیره
1988
مشخصات ظاهری
نام خاص و کميت اثر
1
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
Ph.D.
کسي که مدرک را اعطا کرده
The University of Western Ontario (Canada)
امتياز متن
1988
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
This thesis describes the chemistry of some homonuclear and mixed-metal complexes of platinum with sulphide and diphosphine ligands. (PtPh2(usd\eta\sp1usd-dmpm)2); dmpm = bis(dimethylphosphino)methane, is formed by the facile reaction of a diaryl platinum species with excess ligand. Synthesis of symmetric and asymmetric binuclear platinum complexes is achieved through the bonding of the uncoordinated phosphines to a second platinum centre. Oxidative addition reactions of these dimers are studied. (Pt2(mu-dppm)3); dppm = bis(diphenylphosphine)methane, reacts with carbonyl sulphide to yield (Pt2(mu-S)(mu-dppm)(usd\eta\sp1usd-dppm)2). This complex is used as a precursor in construction of trinuclear clusters. Coordination to a third centre can be achieved through the mono-coordinated diphosphine ligands as well as the mu-S bridge. The reaction of the dimer with d and d metal complexes yields (Pt2M(usd\mu\sb3usd-S)(mu-dppm)3) (X), (M = Pt, Pd, Rh, Ir, Cu, Ag, Au, Hg). The reactivity of these clusters is studied. (Pt2(mu-S)(mu-dppm)(usd\eta\sp1usd-dppm)2) reacts with dialkyl and diaryl platinum (II) complexes to give tetranuclear species. These are the first examples of tetraplatinum complexes containing quadruply bridging sulphide groups. The reactivity of (Pt2(mu-dppm)3) towards a variety of thiols is examined. Thiols oxidatively add to the dimer to give platinum (I) and platinum (II) complexes. Since platinum has a great affinity for sulphur, in some cases the dimer abstracts the sulphur atom from the thiol to form sulphur-bridged binuclear species. (Pt2(mu-dmpm)3(PPh3)) reacts with CO(g) under water-gas shift conditions to yield the stable 46-electron triplatinum cluster, (Pt3(mu-CO)(mu-dmpm)4) . The molecular structure of this cluster shows that the complex possesses strong Pt-Pt bonds. The cluster exhibits very little reactivity. The 46-electron count is not an unfavourable arrangement for low oxidation state platinum complexes since this cluster is clearly reluctant to add or lose a ligand to alter its electron count.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Chemistry
موضوع مستند نشده
Pure sciences
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
مستند نام اشخاص تاييد نشده
N. Hadj-Bagheri
مستند نام اشخاص تاييد نشده
R. J. Puddephatt
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب وضعیت انتشار
فرمت انتشار
p
اطلاعات رکورد کتابشناسی
نوع ماده
[Thesis]
کد کاربرگه
276903
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
