13C Nuclear magnetic resonance spectra of antipyrine derivatives and their application to hansch analysis.

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Nuclear magnetic resonance spectroscopy: 13C spectra of unsubstituted inositols.

The chemical shifts of (13)C in natural abundance have been obtained from nuclear magnetic resonance spectra of scyllo-, myo-, chiro-, and epi-inositols at 15.1 MHz. A set of empirical substitutent parameters were derived and shown to be moderately successful in correlating the (13)C resonance-line positions for these substances. The substituent parameters conform generally to the idea that ste...

متن کامل

13C nuclear magnetic resonance spectra of fungal melanins.

The 13C resonance spectra of fungal melanins from Aspergillus niger, Eurotium echinolatum, and Stachybotrys chartarum are reported. The spectra were taken in 5% W/W solution of the substances in 0.1 N NaOD in D2O using the Fourier-transform-technique. The spectra and possible assignments of the bands are discussed. The similarities of these spectra to those of soil humic acids are unexpectedly ...

متن کامل

Analyzing Nuclear Magnetic Resonance and their application to Magnetic Resonance Imaging (MRI) Systems

In this document, we focus on analyzing and representing the operating theory of nuclear magnetic resonance. Magnetic resonance imaging (MRI) is used by clinicians to produce tomographic images of the inside of the human body. MRI is also used by scientists to study materials as it is a non-destructive imaging technique. It is does no harm to human body since this system does not use ionized ra...

متن کامل

INTERPRETATION OF SOLID STATE 13C AND 295i NUCLEAR MAGNETIC RESONANCE SPECTRA OF KAOLINITE INTERCALATES

~3C and 295i nuclear magnetic resonance spectroscopy with magic-angle spinning bas been used to study the short-range ordering and bonding in the structures of intercalates of kaolinite with formamide, hydrazine, dimethyl sulfoxide (DMSO), and pyridine-N-oxide (PNO). The 29Si chemical shift indicated decreasing levels of bonding interaction between the silicate layer and the intercalate in the ...

متن کامل

Natural-abundance 13C nuclear magnetic resonance spectra of terpenes and carotenes.

Natural-abundance (13)C nuclear magnetic resonance spectra are reported for some simple terpenes and carotenes. The techniques involved in the assignment of the resonances to specific carbons are outlined. The potential of this nondegradative procedure for structural analysis is demonstrated for the investigation of carbon atoms in chemical and biochemical systems.

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

ژورنال

عنوان ژورنال: Chemical and Pharmaceutical Bulletin

سال: 1976

ISSN: 0009-2363,1347-5223

DOI: 10.1248/cpb.24.61