A high-pressure crystallographic and magnetic study of Na5[Mn(l-tart)2]·12H2O (l-tart = l-tartrate).

نویسندگان

  • Gavin A Craig
  • Christopher H Woodall
  • Scott C McKellar
  • Michael R Probert
  • Konstantin V Kamenev
  • Stephen A Moggach
  • Euan K Brechin
  • Simon Parsons
  • Mark Murrie
چکیده

The crystal structure and magnetic properties of the compound Na5[Mn(l-tart)2]·12H2O (1, l-tart = l-tartrate) have been investigated over the pressure range 0.34-3.49 GPa. The bulk modulus of 1 has been determined as 23.9(6) GPa, with a compression of the coordination spheres around the Na(+) ions observed. 1 is therefore relatively incompressible, helping it to retain its magnetic anisotropy under pressure.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Field-induced slow relaxation in a monometallic manganese(III) single-molecule magnet.

High-field electron paramagnetic resonance spectroscopy shows that the structurally distorted Mn(III) ion in Na5[Mn(L-tart)2]·12H2O (1; L-tart = L-tartrate) has a significant negative axial zero-field splitting and a small rhombic anisotropy (∼1% of D). Alternating-current magnetic susceptibility measurements demonstrate that 1, which contains isolated Mn(III) centers, displays slow relaxation ...

متن کامل

Luminescence of tartrate bridged dinuclear 2,2'-bipyridine platinum(ii) complexes: emission color controlled by intra- and inter-molecular interactions in the solid state.

Novel dinuclear PtII complexes with a chiral (l-) and an achiral (meso-) tartrate [{PtII(bpy)}2(μ-x-tart)] (bpy: 2,2'-bipyridine; tartH22-: tartrate; x = l (1), meso (2)) and with a racemic (dl-) tartrate [{PtII(bpy)}2(μ-d-tart)][{PtII(bpy)}2(μ-l-tart)] (3) were synthesized, and the influence of their stereochemistry on their molecular and crystal structures affecting their luminescence was dis...

متن کامل

Effects of Montmorency tart cherry (Prunus Cerasus L.) consumption on vascular function in men with early hypertension.

BACKGROUND Tart cherries contain numerous polyphenolic compounds that could potentially improve endothelial function and reduce cardiovascular disease risk. OBJECTIVE We sought to examine the acute effects of Montmorency tart cherry (MC) juice on vascular function in subjects with early hypertension. DESIGN A placebo-controlled, blinded, crossover, randomized Latin square design study with ...

متن کامل

Prevalence of testicular adrenal rest tumours in male children with congenital adrenal hyperplasia due to 21-hydroxylase deficiency.

OBJECTIVE Testicular adrenal rest tumours (TART) are a well-known complication in adult male patients with congenital adrenal hyperplasia (CAH), with a reported prevalence of up to 94%. In adulthood, the tumours are associated with gonadal dysfunction most probably due to longstanding obstruction of the seminiferous tubules. The aim of our study was to determine the presence of TART and their i...

متن کامل

Tart cherry juice decreases oxidative stress in healthy older men and women.

Compared with young adults, older adults have significantly impaired capacities to resist oxidative damage when faced with acute stress such as ischemia/reperfusion. This impairment likely contributes to increased morbidity and mortality in older adults in response to acute trauma, infections, and the susceptibility to diseases such as atherosclerosis, cancer, diabetes, and Alzheimer's disease....

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Dalton transactions

دوره 44 42  شماره 

صفحات  -

تاریخ انتشار 2015