Improved Magnetization Transfers among Quadrupolar Nuclei in Two-Dimensional Homonuclear Correlation NMR Experiments Applied to Inorganic Network Structures

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

Two and Three-dimensional Through-Bond Homonuclear-Heteronuclear Correlation Experiments for Quadrupolar Nuclei in Solid-State NMR Applied to 27Al-O-31P-O-27Al networks

Through-bond correlation experiments can be realised in solids between spins of type X, separated by four chemical bonds, in X-O-Y-O-X molecular motives, provided a scalar coupling (J) between X and Y exists. In the 2D-Homonuclear-Heteronuclear Single Quantum Correlation (H-HSQC) experiment presented here, the central transitions of quadrupolar Al spins can be correlated via the scalar coupling...

متن کامل

NMR heteronuclear correlation between quadrupolar nuclei in solids.

We show for the first time that it is possible to acquire high-resolution heteronuclear NMR correlation experiments in solid state between second-order-broadened half integer quadrupolar nuclei (i.e., 27Al and 17O) using the scalar J-coupling. The sensitivity of the experiment is dramatically improved at high fields (gain proportional to the fourth power of the principal field) with a combinati...

متن کامل

Enhancing sensitivity of quadrupolar nuclei in solid-state NMR with multiple rotor assisted population transfers.

Rotor-assisted population transfer (RAPT) was developed as a method for enhancing MAS NMR sensitivity of quadrupolar nuclei by transferring polarization associated with satellite transitions to the central m=12-->-12 transition. After a single RAPT transfer, there still remains polarization in the satellite transitions that can be transferred to the central transition. This polarization is avai...

متن کامل

Two-dimensional one pulse MAS of half-integer quadrupolar nuclei.

We show that the two-dimensional one pulse (TOP) representation of magic-angle spinning nuclear magnetic resonance data of half-integer quadrupolar nuclei has significant advantages over the conventional one-dimensional spectrum. The TOP spectrum, which correlates NMR frequency to spinning sideband order, provides a rapid determination of the number of sites as well as the size of the their qua...

متن کامل

Signal enhancement of J-HMQC experiments in solid-state NMR involving half-integer quadrupolar nuclei.

We show that for half-integer quadrupolar nuclei, the manipulation of the satellite transitions can accelerate and enhance coherence transfer to other isotopes. This novel strategy is demonstrated to improve the sensitivity of (31)P-{(27)Al} J-HMQC experiments for a layered aluminophosphate Mu-4.

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: Molecules

سال: 2020

ISSN: 1420-3049

DOI: 10.3390/molecules25020337