Prescott, Hillary A.: The Crystal Structures and Thermal Behavior of Hydrogen Monofluorophosphates and Basic Monofluorophosphates with Alkali Metal and N-containing Cations

Table of Abbreviations, Acronyms, and Symbols

a, b, c, alpha, beta, gamma

lattice constants and angles

A

hydrogen acceptor of the hydrogen bond

Å

Ångstrom, 10 pm, 10-10 m

aq

aqueous

avg.

average

calcd

calculated

Cs/NH4

Cs3(NH4)2(HPO3F)3(PO3F)2

½D + ½A

½ hydrogen donor and ½ hydrogen acceptor

d

bond length

D

hydrogen donor of the hydrogen bond

Diet

diethyl ammonium hydrogen monofluorophosphate

di or disd

disordered

DTA

differential thermal analysis

DTG

differential thermogravimetric analysis

Et

ethyl group, -CH2CH3

EtOH

ethanol

Et2O

diethyl ether

GooF

goodness of fit defined as GooF = S ={Sigma[w(Fo2 - Fc2)2]/(n-p)}½

(H)PO3F

hydrogen monofluorophosphate or monofluorophosphate

H(H)PO3F

hydrogen atom of OH group in the (H)PO3F tetrahedron

HN

hydrogen atom on nitrogen

IC

ion current

M

Na+, K+, Rb+, Cs+, or NH4+, unless otherwise defined

Me

methyl group, -CH3

med

medium

MeOH

methanol

Na/[NMe4]

Na5[NMe4](PO3F)3·18H2O

N,N´-dmu

N,N´-dimethyl urea

N,N´-dmuH+

N,N´-dimethyl uronium cation, {HOC[NH(CH3)]2}+

OA

hydrogen acceptor oxygen atom

Occ.

occupancy

OD

hydrogen donor oxygen atom

Ow

oxyge. atom of crystal water

O(w)

oxygen atom of crystal water or (H)PO3F tetrahedron

PE

polyethylene

PipzH22+

piperazinium cation, [NH2(CH2CH2)2NH2]2+

Pipz

piperazinium hydrogen monofluorophosphate

PTA

pulse thermal analysis

R1

residual factor defined as R1 = Sigma\|[boxv ]\||Fobs| - |Fcalc|\|[boxv ]\|/Sigma|Fobs|

RT

room temperature

Sect.

section

STA

simultaneous thermal analysis (DG, DTA, TG)

TG

thermogravimetry

wR2

residual factor defined as wR2 = {Sigma[w(Fo2 - Fc2)2]/Sigma[w(Fo2)2]}½

V

unit cell volume

VF

total fluorine bond valency

X

oxygen or fluorine atom, unless defined otherwise

XRD

X-ray powder diffraction

Z

number of formula units in the cell

µ

absorption coefficient

rhocalc

density, calculated

ang

bond angle


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